G.B. 1966 Birds set on Connoisseur First Day Cover, London W C
G.B. 1966 Birds phosphor set on GPO First Day Cover, Bureau London EC
G.B. 1966 Birds set on Philart First Day Cover, Sheffield
G.B. 1966 Birds set on GPO First Day Cover, Philatelic Bureau London
G.B. 1966 Birds phosphor set on Philart First Day Cover, Northampton
