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[want0sell]

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[AT101ET]

You should probably move this to the collectibles section as you'd et more interest there.
However, given your trust it's fair to say that escrow would be a must in such a transaction unless you had another way of proving the authenticity of the silver.
Posting pictures would also be a good idea so that users can get a fell for their design and condition.

[Fortify]

You're much more likely to get interest if you post photos of them (with your username and the current date on a piece of paper next to it). Olympic and moon landing stuff should sounds decent, but it all depends on the year and condition of the coins if you're looking for the best price.