Prairie cone flower / echinacea pattern faience pottery plate, a beautiful deep golden yellow with flowers in pale blue.
The marks on this look like St F G to us - we're not familiar with this maker, and it's the first time we've ever found a majolica piece in this pattern.
This plate measures about 9 1/4" in diameter. It's showing some age and a few small glaze chips, but no cracks or serious damage.