This tube came from a confectionary store that closed down in Manitoba in the 1930's. The tube and other goods have been kept in an enclosed crate since then. They haven't been exposed to the light of day. I have no idea if there is a marked for this item but I have two, the second on is in a broken open box. The tube feels as good as the day it was made. Looking for some insight as to whether there is a market for them and open to offers.