McCOY pottery bowl

Slightly off white glazed, 8" across, kinda fluted shape/pattern, imprinted "McCoy USA" on its bottom but nothing more. Saved from a lot of odd dishware, so far it makes a good soup bowl...? :-)

OR -- is it really somehow 'art pottery' (as the category suggests) such that it shouldn't be banging around my kitchen sink...???

BTW, does anybody know offhand if this would be 'microwave safe'...?? ;-)