slide presentation entitled, 'oyster creek core spray
TRANSCRIPT
.'Enclosure 2
C !
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MEETING AGENDA .,
OYSTER CREEK CORE SPRAY SPARGER REPLACEMENT'-
APRIL 15, 1981 .
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I. INTRODUCTION JIM KNUBEL (JCP&L)
A',' HISTORY
B'.' MEETING OBJECTIVES
II. DESIGN SUMMARY. JAY ERBES (G.E.)-
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A. DESIGN CRITERIA
B'.' REPLACEMENT DESCRIPTION
III. STRUCTURAL DESIGN JIM CHARNLEY (G.E.)
A. STATIC ANALYSIS-
B. DYNAMIC ANALYSIS
C. DYNAMIC RESPONSE TESTING
IV. REACTOR PERFORMANCE JIM OATES (G.E.) -
A .' NORMALOPERATION~
B. TRANSIENT AND ACCIDENT
V. CORE SPRAY PERFORMAMCE AND TESTING JIM OATES (G.E.) |
A. DESIGN REQUIREMENTS
B. CONCEPTUAL OVERVIEW
C'.' FLOW DISTRIBUTION~ - - ~
D. SPRAY DISTRIBUTION
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SUMMARY AND FUTURE SCHEDULE JIM KNUSEL (JCPEL)
B 2 05 350 (VI .oo
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.~ OYSTER CREEK CORE SPRAY SPARGER REPLACEMENT |,
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HISTORY.
1 CRACK DISCOVERED BY VISUAL INSPECTION1978 -
MULTIPLE CRACKS DISCOVERED BY IMPROVED1980 -
VISUAL TECHNIQUES AND UT,....
JCP&L SUBMITTAL SUGGESTED SPARGER REPLACEMENT-
WITHIN 2 REFUELING CYCLES
NRC SER REQUIRED REPLACEMENT WITHIN 1 CYCLE-
JCP&L AND NRC STAFF MEETINGOCT 1980 -
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JCP&L SUBMITTAL TO NRCMAR 1981 -
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APR 1981 - JCP8L AND NRC MEETING
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JK-1.
4/15/81
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0YSTER CREEK CORE SPRAY SPARGER REPLACEMENT'
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MEETING OBJECTIVES
1. CONCURRENCE WITH DESIGN QUALIFICATION PROGRAM ;
e- APPLICABLE CODES i
e ANALYTICAL SUPPORT
e TEST PROGRAM !,.
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II. ESTABLISH REQUIRED DOCUMENT SUBMITTALS,
o PRELII:! NARY MODIFICATION REPORT (3/81)
e FINAL MODIFICATION REPORT (10/81)'
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III.- ESTABLISH SCHEDULE OF PRESENTATIONS
e CORE SPRAY TESTS RESULTS (9/81)
IV. DISCUSS PRELIMINARY MODIFICATI0ll REPORT
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JK-;l4/15/81
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OYSTER CREEK .-
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f ~0VERHEAD CORE SPRAY SPARGER'
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DESIGN CRITERIA.
I. SYSTEM
e 2,45 GPM/ BUNDLE
e DUAL SYSTEMS - 100% REDUNDANCY--
e i1Ih! MUM IMPACT ON EXISTING IllTERt|ALS
AND REACTOR OPERATI0tlS
e ONE SPRAY N0ZZLE PER 4 BUNDLES.
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II. APPLICABLE CODES
s ASME SECTION XI
s ASME SECTION III, Sil3SECTI0tl flG AS'
DESIGN GUIDE
e SAFETY ESSENTIAL, 10CFR21 APPLIES'
III, MECHANICAL -
e WATER SUPPLIED THROUGH EXISTING
REACTOR PRESSURE VESSEL t!0ZZLES'
e REMOVA3LE FOR REFUELING AND INSPECTI0tl
e MATERIAL - TYPE 316 (L) OR 304 (L)'
f.'02% MAX, CARBON'
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JGE - 14/15/81
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OVERilEAD CORE SPRAY SPARGER ,
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SUPPORT STRUCTURE1
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SUPPORT BEAMS-
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SPARGER SUPPORT STRUCTURE
PLAN VIEW
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N0ZZLE ARRANGEMENT .
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0YSTER CREEK CORE SPRAY SPARGER REPLACEMENT.
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STRUCTlJRAL DESIGN~
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CORE SPRAY SPARGER AND CORE SPRAY LINE.
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A. STATIC ANALYSIS ..
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B'. DYNAMIC ANALYSIS~
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: C. DYNA!ilC FESPONSE TESTINGe
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STATIC ANALYSIS'
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-A. SIZING- '
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DRAG COEFFICIENT = 1' '
LIFT COEFFICIENT = 1- -..
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. DAMPING = 2%-
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EXCITATION FREQUENCY = NATURAL FREQUENCY- -.
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' PPLIED LOAD = 25 TIES HYDRAULIC LOADA-. .
ALTERNATING STRESS <10 KSI.
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B'. ' DEAD WEIGHT-
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C. THERMAL''
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D. SEISMIC~'
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SPARGER DYllAMIC Ai1ALYSIS :.
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1332 DEGREES OF FRF.EDOM-..
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. .LOWEST NATURAL FREQUEllCY = 42 HZ
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DAMPIllG = 1.5%~
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-B'.' H'YDRAULIC FORCE-
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. FLUCTUATING LIFT COEFFICIENT = .2 CYLINDERS'
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= 1.0 PLATES
APPLIED SIPULTAt1E0VS TO ALL NODES IN PHASE-
, PREDICTED VORTEX SHEDDING FREQUENCY' '
=.13HZ(3-1/2." PIPE 5)' -
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= 10 HZ (5" PIPES)'--
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= 11 HZ (1.5" BEAMS).
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APPLIED FREQUEf1CY = 5, 10, 13, 15, 20, 25, 30, 35, 40-
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AtlD AT 5 LOWEST NATURAL FREQUENCIES-
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~ .'C. CRITERIA.
ALTERNATIf1G STRESS 4 10 KSI-
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. LINE DYNAMIC ANALYSIS*
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A. IMTHEMATICAL l'0 DEL-
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. 174 DEGREES OF FREEDOM- -
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LOWEST NATURAL FREQUENCY = 114 HZ
DAMPING = I4 % -
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B. HYDPAULIC FORCE-
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FLUCTUATING LIFT COEFFICIENT = .2'
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APPLIED SIMULTANEOUSLY TO ALL NODES IN PHASE
PREDICTED VORTEX SHEDDING FREQUENCY = 7 Ilf,
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APPLIED FREQUENCY = 10, 20, 30, 40, 50, 60, 70, 80'-
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-- AND AT 5 LOWEST NATURAL FREQUENCIES-
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C. CRITERIA
' ALTERNATIllG STRESS < 10 KSI-
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4/6/81.
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. DYNAMIC RESPONSE TESTING~
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A. SPARGER .
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SHOP TEST TO VERIFY NATURAL FREQUENCIES -
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AND l'0DE SHAPES FROM MATHEMATICAL MODEL.
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B'. LINE'
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. FULL SC LE INTER:!AL FLOW TEST TO VERIFY-
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PERFORMANCE DURING CORE SPRAY' INJECTION-
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REACTOR PERFORMAllCE
NORMAL OPERATION .
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o SEPARATOR / DRYER PERFORMANCE- N0 PERFORMANCE DEGRADATION DUE TO REDUCED.
SEPARATOR / DRYER SPACING
SPARGER HEADER COULD IMPACT PERFORMANCE OF-
PERIPHERAL SEPARATORS (18 0F 151 TOTAU,.
TOTAL BLOCKAGE RESULTS Iti:
(' 1,7 PSI PRESSURE DROP INCREASEo
CARRYUllDER WITHIN DESIGN LIMITSo
CARRYOVER WITHIN DESIGN LIfilTSo
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N0 IMPACT ON PLAtlT PERFORMANCE
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STEAM SKIRT PREVENTS STEAM LEAKAGE TO ANilVLUS-
- CONSERVATIVE ANALYSIS SHOWS SKIRT REMOVAL:
<0.03% CARRYUt! DER INCREASEo
NO RECIRC SYSTEM PERFORMANCE DEGRADATI0tlo
<0.4 BTU /LB CORE INLET EtiTHALPY INCREASEo
CYCLE SHORTEilED BY ONE-HALF FULL POWER DAY
INCONSEQUENTIAL EFFECT ON NORMAL PLANT OPERATION
JH0 - 14/15/81
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REACTOR PERFOR.''.ANCE :
NORMAL OPERATION.-(CONTINUED)'
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o RECIRCULATION SYSTEM PERFORMANCE
- SPARGER INCREASES AP <0.8 est
SUBSTANTlAL EXCESS FLOW CAPABILITY EXISTS-
NO RECIRCULATION SYSTEM PERFORMANCE CONCERN -- -
EVEN CONSIDERING BLOCKED SEPARATORS.
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REACTOR PERFORMANCE .
TRANSIENT / ACCIDENT CONDITIONS /'
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o CORE HYDRAULIC STABILl!Y~
CONSERVATIVELY MODELED .-
DECAY RATIO INCREASES * 0,04-
NO IMPACT BECAUSE DECAY RATIO CONSIDERING OVERHEAD.
CORE SPRAY SfARGER IS SIGNIFICANTLY LESS THAN 3.0..
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o ANTICIPATED OPERATIONAL TRANSIENTS'
PEAK VESSEL PRESSURE INCREASES < l est-
PEAK HEAT FLUX INCREASES < 0.5% FOR PRESSURIZATION-..
EVENTS
CHANGES TOO SIALL TO AFFECT RELOAD LICENSE ANALYSIS... 4.
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._ o INTERNAL PRESSURE DIFFERENCES
SHROUD STEADY STATE HYDRAULIC LOADS INCREASE DUE-
TO HIGHER aP
INCONSEQUENTIAL DYNAMIC LOAD INCREASE-
SUBSTANTIAL MARGIN TO DESIGN LIMITS ACCOMODATES HIGHER
AP
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REACTOR PERFORMAilCE :.
/ TRAllSIErlT/ACCIDEllT C0flDITI0flS, '
(CONTINUED)
o LOSS OF COOLA!!T ACCIDEllTS.
NO EFFECT ON CURRENT LOCA AtlALYSES WITH-
REQUIRED CORE SPRAY FLOW / BUNDLE
GRID REMOVED DURING REFUELING --.
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o ZER0 LOCA POTEllTIAL
MAINTEllANCE ISSUE: .
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o ONE SYSTEM SUFFICIENT TO FLOOD BYPASS.
REGION a SPILL OVER INTO CHANNELS.
.o UTILIZE ADMIf1ISTRATIVE PROCEDURES
TO PREVEilT lilADVERTENT DRAlillilG
NO REDUCTI0ft IN SAFETY MARGIflS.
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CORE SPRAY PERFORMANCE AND TESTINGY
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o DESIGN REQUIREMENTS,
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o CONCEPTUAL OVERVIEW.
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#CORE SPRAY PERFORMAllCE AtlD TESTING
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DESIGN REQUIREMEllTS'-
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o' ORIGINAL DESIGN
BUNDLE FLOW:-
2.45 GPM
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SPARGER FLOW:~
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3400 GPM a 125 PSIA VESSEL.
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o OVERHEAD CORE SPRAY SPARGER
ORIGINAL DESIG!1 REQUIREMENTS-
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PLUS
VESSEL ENVIRONMENTAL RANGE:
15 PSIA AIR, 15 TO 125 PSIA STEAM
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CORE SPRAY PERFORMAi1CE AllD TESTING: :
'-,
CONCEPTUAL OVERVIEW
-.
o BUNDLE FLOW AVAILABLE
3400 ^: 6 GPM/BUilDLE (GROSS)560 . -
a 4.'5 GPM/ BUNDLE (NET)~
,
-
.
o APPR0X. 2 GPM/ BUNDLE EXCESS
.
o 11AXIMUM MARGIN DESIGN OBJECTIVE
'
DIRECT BUNDLE INJECTION--
.
DIRECT SPRAY TO 4 BUNDLES-
o REDUf1 DANT SYSTEMS > 4 BUNDLE SPRAY
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JH0 - 74/15/81
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CORE SPRAY PERFORMANCE AtlD TESTING,'.
.
FLOW DISTRIBUTION
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o PER SPARGER ARM,
o PER SPRAY N0ZZLE.
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o EASY TO ACHIEVE UNIFORMITY
. .
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o SPARGER PRESSURE LOSSES ARE IMPORTANT,
SYSTEM CAPACITY
.
o OVERHEAD DESIGN STRAIGHTFORWARD.
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JHO - 8 1
11/15/81
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CORE SPRAY PERFORMANCE AND TESTING,-,,-
,
.
SPRAY DISTRIBUTION
.
o THE CONCEPT,
- COVER 4 BUNDLES /N0ZZLE.
- WORST ENVIRONMENT-,
, .
OVERLAP SPRAYS-.
MULTIPLE COVERAGE / BUNDLE
N0ZZLE LOCATION INSENSITIVITY
o THE DESIGN PROCESS
EMPIRICAL EMPHASIS-
-
STRAIGHTFORWARD ANALYSIS-
.
.
JHO - 12f1/15/81
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4
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ICORE SPRAY PERFORP.AllCE AND TESTING ,
,
SPRAY DISTRIBUTION-
o' N0ZZLE SELECTION
SINGLE N0ZZLE - HIGH PRESSURE STEAM-
.
SINGLE N0ZZLE - LOW PRESSURE STEAM-
'
:
- 4 N0ZZLES - AIR,
. .
o SELECTED N0ZZLE - STEAM TESTS
MULTIPLE N0ZZLE INTERACTION- -
SINGLE SYSTEM
DUAL SYSTEMS.
LOCATION SENSITIVITY-
FLOW SENSITIVITY]-
o- SPRAY MODULE QUALIFICATION
.
4
JHO - 144/15/81
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4
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CORE SPRAY PERFORMANCE AND TESTING
.
SPRAY DISTRIBUTION,
-
.
-.
'
o FULL CORE SIMULATION IN AIR
DIRECT VERIFICATION OF MODULAR AIR TESTS- -
VERIFICATION OF FLOW DISTRIBUTION ORIFICING-
,
'
FULL CORE BuilDLE FLOW MEASUREMENT-
VERIFICATION SPARGER FLOW CHARACTERISTIC-
.
' ~
-.
,
o fit!AL SPRAY QUALIFICATION
JHO - 15
4/15/81.
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MEETING SUMMARY DISTRIBUTION
DocketNRC PDR ,
'
Local PDRORB RE= dingJ. Olshinski
= S . .- Va rgaT. IppolitoR. ClarkJ. StolzD. CrutchfieldW. PaulsonJ. Lombardo -0 ELD
OI&E.(3)HSmithACRS (10) ~
NSIC*
ETERA? m|eK. WichmanH. Shaw '
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|h}:C. Y. Cheng .
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B6R. Frahm
__d 1A M 1 4 196 W' 'G. walton _
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