G.B. 1973 Oak Tree on Post Office First Day Cover, Bureau
G.B. 1973 Oak Tree on British Caledonian/Horley Pool First Day Cover, Bureau
G.B. 1973 Oak Tree on Post Office First Day Cover, Westonbirt Arboretum, Tetbury
G.B. 1973 Oak Tree on Post Office/Stampex Official u/a First Day Cover, Horticultural Hall
G.B. 1973 Oak Tree on Forces First Day Cover, FPO 513
G.B. 1973 Oak Tree on Post Office/Stampex Official First Day Cover, Horticultural Hall
G.B. 1973 Oak Tree on Thames First Day Cover, Westonbirt Arboretum, Tetbury
G.B. 1973 Oak Tree on Forces First Day Cover, FPO 841
G.B. 1973 Oak Tree on Post Office First Day Cover, Hatfield Broadoak, Bishops Stortford
G.B. 1973 Oak Tree on unusual flown British Caledonian/ S.P.A. First Day Cover, Bureau
