Silver or Not Silver Caribbean Coinage?

[stas3000]

I've got a few coins from countries located in the Caribbean: Bahamas, Barbados, Cayman Islands, etc. Mostly large (some commemorative) ones from the 1970's when Franklin Mint was minting them. There's probably some history to that I am unaware of. Anyway, according to Standard Catalog some coins were design wise and size wise identical between silver (80%-92.5%) and cu-ni compositions. I'm wondering how to tell if what I have is silver or not as well as when I buy in the future. Here's an example.

I have Barbados Five Dollar coins dated 1973, 1975, 1976. As far as I understand 1976 is available as silver and clad. I think I have the silver kind. That's how it was sold to me. Coins have identical design according to the Catalog. But there might be differences in weight, look, something else. I am speculating. Anyone have any tips/thoughts? Thanks in advance.

[sandro]

According to numismaster.com, the $5 1976 from Barbados were made in silver for the proof coins and Ni-Cu for the circulation strikes

[Gold Rush]

I'm in the same boat, so I know what you mean..I just started skipping pre 1930 world silver coins across the lake out back..I have been using numismasters like Sandro just mentioned..there is also some places on line you can join to look up a item like numista.com Hope this helps a little

[stas3000]

Thanks, guys. One of the things that's a bit strange is that the 1976 5 dollar silver coin is listed at 31.10 grams while mine weighs 31.96 g. Then the '75 5 dollar coin weighs 31.15 g and listed at 31.10 just like the '76. All using same AWS-100 scale that's been pretty reliable. I think that variance on '76 is odd. Is there anywhere online to check weights of non-silver coins?