TA cranks were introduced around 1960, first the cottered model with the triangular axle, then, in 1962, the model we currently know as Cyclotourist. I am sure there have been minor changes over the years, but essentially, it's the same. Before that, most French cyclotourists used Stronglight (since 1932) or Herse (since about 1938 or 39), not to speak of exotic stuff like the cottered alloy Maniplume and the Duprat hollow steel ones. All (except Herse) had the same 5-bolt chainring attachment, so you could use the Rosa/Cyclo and later TA rings on all of them.
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Jan Heine, Seattle
Editor/Publisher
Vintage Bicycle Quarterly
http://www.mindspring.com/