Tins were used in all exotic shapes and sizes and are very collectible today — some are worth up to $1,500. In today's market, the most collectible tins are those from the 1920s through the 1960s.
The main reason why people call these empty cans ''Tins'' can be dated back to the late 20th century. Back then, cans were created out of tin-plated steel in order to combine the strength and affordability of steel with the corrosion resistance of tin.