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30th MMM science fair

Germany (East)

03 Nov 1987

stamps in set 2

stamps in set about computers: 2 / 2

ID# 639 click on stamp to zoom	Format SH Face v.10 Perf.13 x 12½ Print.Lithography Category
ID# 640 click on stamp to zoom	Format SH Face v.20 Perf.13 x 12½ 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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