Welcome To Cointalk I believe you would need to list it in the (For Sale) section but I see your new and if memory serves me you will have to had 10 post before you will be able to do that.JMO Dave https://www.cointalk.com/threads/coin-talk-rules.34131/
Thanks for your reply.I don't know what to do about post this coin for sell . I found were it is worth 190,000
Unfortunately yours is a cast copy of the genuine valuable coin. The rough grainy surfaces and mushy devices are indicative of a cast replica.
It is a counterfeit for sure. Don't try to sell it unless you want to be charged with dealing in counterfeit coins.
where did you find this coin looks to be counterfeit, if you did not find this coin, did you cast to sell it for money and try to get away with lying to a true coin dealer.
These are common on Ebay https://www.ebay.com/itm/USA-Nova-C...726487?hash=item2f1fe77957:g:HBcAAOSw52tbYOwV and Alibaba Aliexpress.