How much is a used 1977 Jubilee Stamp worth?
But supposing that you mean Great Britain, there were five Silver Jubilee stamps issued in the denominations 8½, 9, 10, 11 and 13p. American collectors would call them Great Britain Scott numbers 810-814 respectively. The Scott catalog values for them are respectively (in U.S. currency) 30, 35, 40, 45 and 50 cents, used.