Great Britain Stamp Issues of 1990 Penny Black Anniversary Stamps 1840 – 1990 Issue Date: January 10, 1990 150th Anniversary of Royal Society of Prevention of Cruelty to Animals Issue Date: January 23, 1990 Greetings: (2nd Series) – ‘Smiles’ Issue Date: February 6, 1990 Europa: Glasgow 1990 European City of Culture Issue Date: March 6, 1990 25th Anniversary of Queens Award for Export and Technology Issue Date: April 10, 1990 150th Anniversary of Kew Gardens Issue Date: June 5, 1990 150th Birth Anniversary of Thomas Hardy 1840 – 1928 Issue Date: July 10, 1990 90th Birthday of Queen Elizabeth the Queen Mother Issue Date: August 2, 1990 Machin Definitive: 1990 Issue Date: September 4, 1990 Gallantry Awards Issue Date: September 11, 1990 Astronomy: 1990 Issue Date: October 16, 1990 Christmas: 1990 (Christmas Scenes) Issue Date: November 13, 1990 Regional Machin Definitive – Northern Ireland: 1990 Issue Date: December 4, 1990 Regional Machin Definitive – Scotland: 1990 Issue Date: December 4, 1990 Regional Machin Definitive – Wales: 1990 Issue Date: December 4, 1990