I need help Identifying where exactly this set came from I need help Identifying this.
My grandfather was in ww2 and at one point in the navy he went to Russia and met a Russian Naval Officer to whom he traded for this set, and the officer said he got it from his grandfather, but I'd like some true speculation on it please.
Here's the same set on ebay. More pictures of yours would be helpful.

https://www.ebay.com/itm/Vtg-Ceramic-Duncan-Medieval-Style-32Pc-Chess-Set-Hand-Painted-Faces-Detailed-74/263416351119?hash=item3d54d6898f:g:GaoAAOSw4A5Y0WX2

Perhaps the seller can help you learn more.

If you Google for "ceramic duncan medieval chess", you'll get a lot of hits.