USA 50 Dollars 1851

I saw this coin in the book "Rahakammion aarteet" (Finnish national museum treasures) while searching pictures and info of coins for https://en.numista.com/forum/topic71401.html

This coin does not have a numista page. If someone would like to do a page for this coin, I would appreciate it even though I am not so interested in US coins. First of all, is this a real coin? I do not know much about it.

Yes, it's a real coin .. US Territorial Gold .. California There are several different varieties according to SCWC ..

https://en.numista.com/catalogue/pieces117571.html

There's the Numista page, it's under exonumia because it wasn't made by the US government. Could use some modification to include other years and fineness.