Absolutely none at all.
By content, it's 90% silver with 10% copper with a total weight of 2.5 grams.
The 1957 South African 2 1/2 Shilling coin weighs 14.1400 grams and is 50% silver, giving it and ASW (Actual Silver Weight) of 0.2273 troy ounces.
As of today silver is $17.13 per ounce. And Morgan & Peace dollars all have a silver content of .77344oz of pure silver which would be the value of $13.25 per coin.
about $2.40 for the silver content. The rest would depend on condition.
About $3 for its silver content.
None. Alpaca silver is another name for nickel silver which is a base metal alloy of copper with zinc and/or nickel.
Face value only since no silver content.
It's worth around $5.50 for its silver content.
About $10.50 in silver content.
A 1957 cent is all copper. The silver part has been coated with some other metal, so this is a damaged coin with no numismatic value.
The coin is not "all silver" its 90% silver and 10% copper. The value is about 3 bucks just for the silver content.
No silver or gold in any presidential dollar coins