Computer stamps - year 1970 - stamps on computer science

Postage stamps year 1970

ID# 439	Country Mexico Date 26-Jan-1970 Issue 1970 Census Format SH Note Print characters Face v.20 Perf.14 x 14 Category
ID# 248	Country Cuba Date 15-Mar-1970 Issue Expo Osaka Format SH Face v.3 Category
ID# 480 click on stamp to zoom	Country Thailand Date 01-Apr-1970 Issue Population census Format SH Face v.1 Perf.13 x 13½ Print.Photogravure Category
ID# 531	Country Netherlands Date 07-Apr-1970 Issue Computer designs Format SH Face v.20+10 Perf.13 x 14 Print.Lithography and Engraving Category
ID# 532	Country Netherlands Date 07-Apr-1970 Issue Computer designs Format SH Face v.25+10 Perf.13 x 14 Print.Lithography and Engraving Category
ID# 529	Country Netherlands Date 07-Apr-1970 Issue Computer designs Format SH Face v.12+8 Perf.13 x 14 Print.Lithography and Engraving Category
ID# 533	Country Netherlands Date 07-Apr-1970 Issue Computer designs Format SH Face v.45+20 Perf.13 x 14 Print.Lithography and Engraving Category
ID# 530	Country Netherlands Date 07-Apr-1970 Issue Computer designs Format SH Face v.15+10 Perf.13 x 14 Print.Lithography and Engraving Category