Hate to burst your bubble but from what I can see in the pics, there is no silver there. The pieces that have A1 on them have a single layer of silver plate, IS is international silver which is plated, and nickel silver is copper/nickel. Some rogers patterns are worth some money if they are a collectable pattern. Almost all real silver items will be marked Sterling, ster, 925, 925/1000 or something like that. There are some other threads on here about identifying silver marks.
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