Jersey Pink Pigeons £2.00 1987

I bought a World Wildlife Fund Jersey commemorative 1987 £2.00 pack yesterday, and it was in poor condition. The coin itself is held in a plastic blister pack protruding through the front of a postcard size booklet.

The plastic was brittle and brown, the printed matter shabby mand anyway I collect coins not ephemera, so I broke the coin out:



This is a terrible scan, but the obverse is a beautiful golden colour, thanks to some errant plasticisers, and the obverse pretty much what you would expect.

Trouble is that this coin weighs in at 28.3gr which makes it silver despite its poor appearance. All of the silver "Two Pigeons I've seen have been proofs, and a less prooflike coin than this I can't imagine.

By the way, it cost me £0.50 ($0.80)

Any thoughts?
Thanks,
Bob