Donated by the Institute of Aeronautical Sciences Inc.
Country of Origin: United States of America
Dimensions:
3-D Test: 1.3 x 3cm (1/2 x 1 3/16 in.)
Materials:
Overall: Silver
Physical Description:
B. G. Spark Plugs token; Obverse: relief of a spark plug depicted; embossed text "BG"; Reverse: Blank.
