Found this boxful today, they are small sizes, so maybe plumber?
too big for jeweler?
maybe someone working light tin?
(https://live.staticflickr.com/65535/50994670848_fe16c1f57f_4k.jpg) (https://flic.kr/p/2kGe21U)mar017 (https://flic.kr/p/2kGe21U) by Skip Albright (https://www.flickr.com/photos/skipskip/), on Flickr
(https://live.staticflickr.com/65535/50995480462_3fee0a8f2c_4k.jpg) (https://flic.kr/p/2kGiaFL)mar018 (https://flic.kr/p/2kGiaFL) by Skip Albright (https://www.flickr.com/photos/skipskip/), on Flickr
acetylene/air, some call them a B-tank set, was common for Hvac and plumbers. The soldering irons were for tinners. I don't seem to have a pic of the soldering iron for the "B" tank, just a pic of the B-tank.
Hey Skip. Looks like a Prestolite brand.
Cool set!
Love the soldering tip holder. First class workmanship there.