Description
Three color 5 3/4″ x 4 1/4″ ad for their Pad Sanders. The headline claims that “Syncro Sanders do more work per square inch of sanding pad surface than sanders costing twice as much” over a picture of No. 504 which shows a price of $19.95. The text talks more about its capabilities and guarantees before mentioning the No. 504-D which came with a metal case.
Source: September 1952 Popular Mechanics.