Here's another
https://brandusedworks.hibid.com/lot/63519-107007-63606/twin-ports-fire-arms-co--s-s-20-ga-shotgun/

J.P. Lovell Arms sold a tradename Eureka Gun Co. hammerless

and a H&A hammer gun, also with monobloc barrels and the same font

[Linked Image from photos.smugmug.com]

The Duluth MN-Superior WI Metropolitan Area is commonly called the Twin Ports. I couldn't find a hardware store using that tradename though. Possibly Kelley-How-Thomson Hardware, Marshall-Wells Hardware (sold a Marshall Arms Co. Crescent) or Siegel Hardware in Duluth.

[Linked Image from photos.smugmug.com]

https://sites.google.com/a/damascusknowledge.com/www/home