Computer stamps - year 1973 - stamps on computer science

Postage stamps year 1973

ID# 677 click to zoom	Country USSR Date 12-Apr-1973 Issue Cosmonauts day Format SS Category
ID# 678 click to zoom	Country USSR Date 12-Apr-1973 Issue Cosmonauts day Format SS Category
ID# 1306	Country Tunisia Date 17-May-1973 Issue 5th Internat. Telecommunications Day Format SH Category
ID# 350	Country Poland Date 20-Jun-1973 Issue American and Russian astronomical observatories in space Format SH Category
ID# 351	Country Poland Date 20-Jun-1973 Issue American and Russian astronomical observatories in space Format SH Category
ID# 210	Country USA Date 10-Jul-1973 Issue Progress in electronics Format SH Category
ID# 742	Country Colombia Date 20-Dec-1973 Issue 50th anniversary of Comptroller-general's office Format SH Category