Computer stamps - year 1972 - postage stamps on computer science

postage stamps year 1972

	ID#199 Country Australia Year 1972 Issue 10th International Congress of Accountants Subject printed circuit Tag printed circuit
	ID#165 Country Ivory Coast Year 1972 Issue Information technology 1v (imperforate) Subject mainframe, punched card Tag mainframe punched card
	ID#166 Country Ivory Coast Year 1972 Issue Information technology 1v Subject mainframe, punched card Tag mainframe punched card
	ID#425 Country Liechtenstein Year 1972 Issue Olympic games Munich 4v Subject magnetic ink characters, computer font Tag characters-MICR
	ID#426 Country Liechtenstein Year 1972 Issue Olympic games Munich 4v Subject magnetic ink characters, computer font Tag characters-MICR
	ID#427 Country Liechtenstein Year 1972 Issue Olympic games Munich 4v Subject magnetic ink characters, computer font Tag characters-MICR
	ID#428 Country Liechtenstein Year 1972 Issue Olympic games Munich 4v Subject magnetic ink characters, computer font Tag characters-MICR