1980s vintage made in China heavy porcelain plates with different freshwater fish (perch, carp, trout or salmon?). I believe these are transferware designs with some details hand painted. It's a set of four plates, each different, all 10 1/2" in diameter.
These are marked 'Not for Food Purpose - For Decorative Use Only'. They'd be lovely as wall art, or in a cabinet or as shelf or mantel pieces. All four are in excellent condition.