The top one is 1930s' vintage and missing some attachments I got no idea what for. Same motor as was sold to retrofit foot treddle sewing machines.
Fellow who had the Reservation Store where I started life had about 10 of them sitting on a shelf for so long there was a layer of dust on the pile. I am completely lost to explain how he thought they were a good idea given that only about 5 people on the Reservation had electric, but he sure did like trying to sell them to women.
Bottom one is 1950s, a Professional unit.
Either one is a good heat gun.