I am trying to identify the maker of a silver coffee pot/hot water jug. It was purchased from Ellis Bros (based in Toronto and New York) in 1929. According to the Ellis Bros. catalogue it is a reproduction of Old Sheffield plate, of English manufacture and has been heavily silver plated.
The hallmark is in a stylized font and is an M superimposed onto an S, within a shield. Please see the attached picture.
There is also a “40” stamped into the bottom of the pot. Does anyone know the significance of this number?
Any help would be greatly appreciated.