Picked up some coins at a local swap meet on a whim. They were $3 a piece. I couldn't pass considering the age. I've done a bit of research, and it appears the 1796 coin is a definite knock off. I would imagine the other two are as well. Is there any shot they are actually comprised of silver? Do they have any value as is? Thanks for your help!
I'm not sure about the other 2, but on the back of the morgan it says its made of one troy ounce of silver,
Your photos are (inc. linked) quite small, but the first appears to be a copy of a Wm. Barber designed "goloid" alloy pattern dollar. J1626 comes to mind, but this may be the Judd number for the 1879 version. Neat as a knock-off, but counterfeit nonetheless. The second is obviously not a coin and purports to be a silver round, but I suggest that you weigh and do a little homework before you accept this claim face value. At least to my eyes, it does not look right, and if I recall correctly, I've seen the same or similar that were fake. The third is a modern (I.E. Chinese made) counterfeit.
Of course there is a chance that they could contain silver, but I doubt that any of them are silver and this includes the Morgan silver round.