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Atanasoff

Bulgaria

03 Oct 2003

stamps in set 1

stamps in set about computers: 1 / 1

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Format SH
Note John Atanasoff, inventors of ABC (Atanasoff-Berry Computer), first digital mainframe
Face v.65
Perf.13 x 13
Print.Lithography
Category

social

Formats abbreviations

SH sheet

SS souvenir sheet

MS mini sheet

ST se-tenant

TB tete beche

BK booklet

FDC first day cover

CL coil

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