Coin silver sugar shell, Dexter & Haskins, prob. NE

This 5 7/8" sugar has some repair in the bowl. See picture with arrow showing area. The repair is well done with silver solder. Other it is in nice condition. It is marked "Dexter & Haskins". I have not located them, but because of the form, I believe them to be made in New England. Ca 1845/55. The mark is worn but readable but pictures did not turn out.