Thanks (removed), I will keep his link. I have a retirement gig of buying, selling, trading used welding equipment. Sometimes it is lucrative, some things like these barrels will not move fast, but not in any hurry. I bought a whole box of stuff for $100 and they were in it. They are still made and sell for $800 new. I can make someone a bargain and pick up at least 100%. It is more of a hobby, and I can help folks out. These things have never been used. The box also had a dozen large Victor welding nozzles (up to #12) and about 1/2 are new. New they range from $75-150 each.
I finally found a Customer service # for Victor. They were very nice and helpful. Serial # are not related to year of manufacture. If a Victor items (not all do) has a two letter cade stamped in the body they can provide the vintage. You have to call them. These were made in 2011 and 2015 so not vintage. The current model looks identical. I now have a complete catalog for reference.