The leading edge of the cartouche is too weak. The "G" seems a bit cocked over, which is what I spot in the F. Wingate mark sample I examined. The monogram is a "W". Any possible conclusions welcome...thanks.
Yes! Naturally I'm biased to it being Daddy Winnie's work, but louping shows the G does bottom out, the E is leaning, and the N-A-T all have long feet. I can just barely make out the stump of the F and the period. I guess we can call this a sample for the wares of Fred. Thanks wev!
No, Charles Frederic (1809-) listed as son of Frederick. Apprenticed 1822. [No mark available] I was biased toward this being the mark of his father, Frederick, which it appears to be. And the (unrelated) C.J. Wingate mark should be a bit longer, with a dropped A in that example.