Does anyone have any information on this company? SMC inside Diamond mark on souvenir spoon. I have seen others online and everyone just says "SMC" with no information -- Mostly on souvenir spoons and some jewelry in both Sterling and Silverplate. All of the souvenir spoons I found online are American states and places so I believe it's a US company. I have exhausted all of my reference materials and sites -- so this is my last hope. Any help appreciated!
ps: I have also searched under "M" companies as the "S" & "C" could stand for "Silver Company"
My spoon (below) is for the state of Maine and is silver-plate.