This section shows stamps depicting mainframes computers. A mainframe is a powerful, large and very expensive computer, used mainly by government institutions, universities, big companies for large-scale computing purposes. The term mainframe indicates also the early computers of 1940's and 1950's such as the Zuse Z3, Atanosoff-Berry Computer (ABC), Colossus, Harvard Mark I, ENIAC, UNIVAC, EDVAC and others.
ID# 1400 |
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ID# 288 click on stamp to zoom |
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ID# 110 click on stamp to zoom |
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ID# 1182 click on stamp to zoom |
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ID# 512 click on stamp to zoom |
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ID# 913 click on stamp to zoom |
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ID# 1392 click on stamp to zoom |
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ID# 1249 |
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ID# 693 click on stamp to zoom |
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ID# 908 click on stamp to zoom |
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ID# 689 click on stamp to zoom |
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ID# 1289 |
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ID# 1351 |
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ID# 684 click on stamp to zoom |
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ID# 683 click on stamp to zoom |
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ID# 682 click on stamp to zoom |
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ID# 97 click on stamp to zoom |
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ID# 1075 |
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ID# 459 |
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ID# 1125 |
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ID# 363 click on stamp to zoom |
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ID# 588 click on stamp to zoom |
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ID# 1287 |
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ID# 458 |
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ID# 1072 |
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ID# 633 click on stamp to zoom |
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ID# 558 click on stamp to zoom |
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ID# 557 |
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ID# 1350 click on stamp to zoom |
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ID# 382 |
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ID# 632 |
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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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