Columbus was producing steel tubes for bicycles by 1931; perhaps even
earlier as they started in 1919.
Angel Garcia
Long Valley, NJ
snip:
Plus I think Reynolds tubing came out in the early 1930s and Columbus "may"
not have come out until much later. How much later I dunno, but am sure
somebody on this list can tell you.
Best Regards-
Nels Cone
Seattle WA