I am surprised that no one has nominated the Winchester Model 24 (not that I am a fan of these beasts). Truly suitable as a shotgun, canoe paddle, or cudgel.

My Dad bought his 1906 Parker 16 VHE in a pawn shop in 1935, height of the depression, when he was working as a part-time musician. Seems to qualify it as a working man's gun (and I still have it). My uncle farmed alfalfa and did track maintenance for the Southern Pacific in the California desert, and his working gun was an old (even then) Model 12. That one is long gone. Both of these guys were on-gun hunters, and didn't really need anything else.