Inside Out Library · Explore
Lanterns and Reflectors : Wardle System (1922)
Wardle Engineering Co. · Wardle Engineering Co. · leaf 20
No. 535. Open Pattern … Characteristic Polar Curve.Result of Actual Test.Gas Lighting · Reflectors · Lanterns · Lighting Fixtures
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.
More pictures from Lanterns and Reflectors : Wardle System
More like this
