Probably the really older versions. - It's not necessarily the new shop though.
Some versions back, There was a staircase outside the shop and it went upstairs to a 2nd floor big(ish) bedroom and the entire bottom floor was basically just a walk in shop, the anvil and forge were inside said shop.... and depending on the version - the Metal was only "Metal ingots" (if I recall correctly) and then inbetween that version and the new shop and yard version we currently have - there was also tiered Metal variant of the one I've been talking about.
The Oldddd Tiered metal version if I recall right had drrasstically different prices, too.... But yeah there were also like, titan/golems outside, though I'm not sure which versions they were and weren't, kinda seemed like they alternated from existence to not to back again to not again every few versions...