Identity elements
Reference code
Name and location of repository
Level of description
Item
Title
A87930-3
Date(s)
- 1955-01-16 (Creation)
Extent
Name of creator
(1919-1980)
Content and structure elements
Scope and content
Traffic "slow" signs made out of different materials being studied by a man with a clipboard, photographed for the DFPA. The signs made out of plywood, plywood overlays, glass fiber, steel and aluminum will undergo rigorous testing for durability. They will be tested against direct blows by heavy objects and gunshots. They will be tested for day and evening visibility. The testing was ordered and monitored by the Douglas Fir Plywood Association, well known for policing its own product. Fir plywood emerged the victor in the tests. TPL-8260
Traffic signs & signals--Tacoma--1950-1960; Signs (Notices); Testing; Product Inspection;