Coin silver sugar shell, ER Wait prob Cleveland, Ohio

This coin silver sugar shell is 6 1/2" and in excellent condition. It is monogramed "Date" (so it makes a nice gift even if you guys don't remember names well) or "Dale". It has an interesting makers mark shown on page 59 of John McGrew's book attributing it to an unknown Cleveland manufacturer. I am assuming ER Wait was a Cleveland retailer. Ca 1845/50.