Issue: Czechoslovakia 1968 International Geological Congress Stamp
Type: Stamp
Number of Stamps: 1
Stamps Denomination: 30 h
Issue Date: 1968
Issued By: Czechoslovakia Postal Service (USPS)
Issue: Czechoslovakia 1968 International Geological Congress Stamp
Type: Stamp
Number of Stamps: 1
Stamps Denomination: 30 h
Issue Date: 1968
Issued By: Czechoslovakia Postal Service (USPS)