Im confused by the purpose of the second coin. Why would someone make such a weird jumbled piece haha. Its a Netherlands inspired something...play on a Juliana 2 1/2 G but with weird date, Her mothers picture and America stamped all over it just to name a few. Examples of the portraits
First coin resembles a silver tetradrachm of Eucratides I of Bactria (170-145 BC), but this type has been extensively faked. I can't tell from the photo if it's real or not- there is some possible evidence of casting (which would indicate a fake), but the heavy layer of tarnish makes it hard to tell. I suggest posting your photo over in the Ancients board to get other opinions. The second coin is weird- "Yuliana of America", and dated 4121? A weird hybrid of Dutch and American images, with a date two thousand years in the future? Either this was left behind by a time traveller from a future where the United States and the Netherlands have combined to become the dominant culture, or else it's some weird fantasy piece.