I've got a stack of the Cycle Trades, American Bicyclist from the early 30s to the late 40s.
They provide an interesting insight into what the manufactures were up to, and aiming for.
Really the best source for an accurate timeline of the release dates for models and components/accessories, etc.
Yes, I have a stack of them, and also the full size American Bicyclist & Motorcyclist. I just received a Jan. '36 AB &M, which is about the oldest. I occasionally find an odd one on ebay. along with co. brochures. Got a '65 and undated, probably '61-4 Rollfast brochures. Tons of useful info! I'm in it for under $20, sometimes they get bid way high!