A 700 sq. ft A-frame designed by Dr. David T. Hellyer and built in Tacoma, Washington near the Puget Sound. Original Illustration from Second Homes For Leisure Living.
From Old-House Journal (July 2004):
In 1957 [Douglas Fir Plywood Association] marketers heard about an A-frame design drawn up by David Hellyer, a local pediatrician and amateur builder. They offered Hellyer free plywood in exchange for the use of his plans, photographed the house as it went up, and featured it prominently in their nascent promotional campaign. Within the first few months of publishing Hellyer’s A-frame, the plywood association had filled more than 12,000 orders for complete working drawings. Over the next decade, it appeared in publications as varied as the Journal of Medical Economics and the American Automobile Association’s American Tourist.
Purchase detailed plans here: U-Bild A-frame Cabin, Plan #381
Mid-century