In 1928, Allied Radio Corporation was established as the radio parts distribution arm of Columbia Radio Corporation. The company was soon to become one of the most recognizable names in the electronics industry.
Allied Radio's first Confidential Wholesale Pricing Catalog contained "modern" radio sets, accessories and parts.
Full scans of catalogs from 1929 thru the early 80's. Check out the prices on tubes!
http://www.alliedcatalogs.com/catalogs_main.html