I can't say that I have any experience grading... but I'll give it a shot! According to the charlton catalogue, that 1881 penny looks like the C1a portrait in about F-12 condition which is valued at $20.
Hmm.. I'm revising this post to say it could be between F12 and VG-20... Closer to VG-20. So the value could be from $20-30.
As for the other coin, it looks like a medallion. I have no idea on the value.
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