Platypus
hi im just want to say that it is fon on one half of the coin
The name of Captain Cook's ship that he sailed on to New Zealand is the HMS Endeavour. It is depicted on the 50-cent coin in New Zealand.
kangaroo and emu
it is a ten sided hexegon
1856 quar dol
More information is needed. Please post a new and separate question with the coin's country of origin. Many countries have 50¢ coins.
I won't seal 1966 coins 50c praise
The emu, together with the kangaroo, is found on Australia's 50c piece, supporting the Coat-of-Arms.
Annything from R2 to about R200 000 depends on the rarity of the coin
The first Australian 50c coin was silver and dated 1966. The next one was dated 1969 and it and all regular circulation issues since then have been copper-nickel. You might also try a library for a copy of the Standard Catalog of World Coins for pictures, values and lots more interesting info.
50c
If the coin is a Gem-BU (MS-65) grade, retail value is about $20.00, if it's not at that grade level the value is for the silver at $6.50