We came across this particular item while going thru a family members belonging’s. It has a “JD” in 1 stamp, a “&” in another, and a “S” followed by what looks like a spade or a tree in a shied. Anduunderneath is the marking # M15472
Your query cannot be properly answered without a picture of the marks. I think I know the mark you are describing but I need to see it to be sure.