I believe John Cislak makes them to original form in your choice of brass or aluminum.
I had the same name contact me offering to sell 1930 model parts, then sent a picture I recognized as being for sale recently and wanting my exact address. Looked like scammer to me. I did not respond further.
Hi Robert,
I have been chasing the same problem for 6 months. I was able to get my hands on the basic rim for the 19×700, but without the bevel and bead that allow them to attach to the wheel. Vintage Tire in PA. I found a welder who had access to a lathe that could turn them to shape after welding them in, but it was going to be tedious to do the weld without warping the rim. I wasn’t confident they could do it correctly, so I am still searching or other options. Coker used to make them, but they parted ways with the guy that ran their wheel fab shop. If you find someone to make them, I am interested in at least two.
Rob