Page Comparison

Contributed by Lynne Fors, Wellesley

See attached MARC Bib file files (155,184 records, split into 4 files)

Desired result:

TBD

Sample MARC Records:

...

=LDR  01663nam a2200409Ii 4500
=001  in00000134224
=005  20220805194348.4
=008  761028s1856\\\\mau\\\\\\\\\\\000\0\eng\d
=035  \\$a(OCoLC)2537760
=040  \\$aTYC$beng$cTYC$dm.c.$dWEL
=049  \\$aWELL$aWELB$n*84-468
=090  \\$aPR4842$b.P5
=100  1\$aKingsley, Charles,$d1819-1875.
=245  10$aPoems /$cby Charles Kingsley.
=246  3\$aSaint's tragedy.
=264  \1$aBoston :$bTicknor and Fields,$c1856.
=300  \\$a284 pages ;$c19 cm.
=336  \\$atext$btxt$2rdacontent.
=337  \\$aunmediated$bn$2rdamedia.
=338  \\$avolume$bnc$2rdacarrier.
=500  \\$a"Author's edition."
=505  0\$aThe Saint's tragedy: or, The true story of Elizabeth of Hungary [with preface by F. D. Maurice]: p. [5]-229.--Miscellaneous poems.--Ballads.
=583  1\$aRetained for Eastern Academic Scholars' Trust (EAST)$c20170415$d20310630$fEAST$uhttp://eastlibraries.org/retained-materials$5MWelC$zEAST.
=590  \\$aAccession no.:  *84-468.
=599  \\$a*84-468$dMetcalf, Antoinette B. P.$t1961. Oct.
=600  00$aElizabeth,$cof Hungary, Saint,$d1207-1231$vDrama.
=655  \7$aDrama.$2lcgft.
=700  1\$aMaurice, Frederick Denison,$d1805-1872.
=903  ff$aClapp Stacks$bho00000132515$e35002001890727$fit00000160433$3ho00000132515
=903  ff$aSpecial Collections$bho00000132507$fit00000160422$3ho00000132507
=907  \\$a.b12800405
=910  \\$aEAST Retention Project 4/2017
=910  \\$aFOLIO2022
=910  \\$aReclass Bay 3
=915  \\$aMARCIVE 2019
=995  \\$aWellesley College
=999  ff$i1472af43-4e07-50e5-852e-e39faf4cc447$s1bb4d1c7-62f6-584c-b10c-5159ea2d575c