My grandfather purchased an existing Ironmongers shop in 1900. I have the stocklist from February 1900 lisiting all the rooms and their contents, and every room from cellars to attics were packed with goods! These including the blacksmiths shop, the tinsmiths shop and a whitesmiths shop, something I had never heard off. It appears it was a like a tinsmiths shop but doing finer work.
The company moved in 1905, but there was still a tinsmiths shop in the late 40s, I remember there being a forge, and patterns for pans hanging on the walls, and I have memories of hectic times at Christmas of the tinsmith making roasting tins. When the tinsmith retired the equipment fell into disuse, and was eventually sold off, apart from the guillotine, which is still used daily in the current business now run by his great grandsons.