SSP. An outstanding example of this very rare Porcelain Pump Plate from Power Booster Aviation Ethyl Gasoline. This is the only example of this Sign that we have ever sold. Sign features an excellent Rocket Ship graphic with red, white & blue colors. CONDITION: Sign is in overall outstanding condition throughout showing fantastic color & gloss with an immaculate field free of any chipping. Sign shows an excellent condition graphic with only very minimal mounting hole wear as well as only a couple of very light nicks along the outer edge, most of which are unnoticeable. Overall an absolutely outstanding condition piece, most likely the finest known example. Condition: (9.25+). Dimensions: 13" X 10".