Bruce, the same Holdsworth Aids from 1936 also has ref's to Fiamme Sprint
rims. They are described thus; " Tabucchi" Fiamme rim. New endrick section
16oz per rim. 31/6d. These were wired on's or clinchers. The next page has
9oz tubular rims at 47/6d. They are the most expensive. So from this I
deduce the sprints came out in 1934 as you point out and the clinchers were
new for 1936.
Mark Stevens. Dingwall (Dank is a good word to describe it) Scotland