What type Reynolds Tubing does this bike have??
 

PUCH 100 year Anniversary Brigadier model with scratched decal - can't tell if it says reynolds 531 or reynolds 631 serial #5815168 - does anyone know which tubing these bikes came with and what is the bike worth. It runs real good

A bike that vintage (early to mid 70's, judging from the lack of braze-ons) will most likely have 531 tubing. 631 is, I think, post 80's tubing and part of their modern "air hardened" series.
Austro Daimler and Puch were pretty much one bike company when I encountered them in early 80's
I suspect that had very separate histories before that, but your bike seems to say that Puch was just Puch when your bike was made(?).....unless you see something saying "AD" on that frame somewhere.....


Chombi