What many people do not know is that Limoges blanks were imported into the US and decorated here !! Some by studio decorators and others by hobbyists !! That is likely why your piece is unmarked !! The flowers in the center and in the cameo are transfers,, the gold is applied by hand !! However one of the Limoges trademarks is a heavy gilding on the accent areas,,it did not wear off like yours has !! So I bet that your bowl is one that was decorated here in the Limoges style !! By who is just a guess !! Sorry,, but it is a very pretty bowl in the Limoges style !!