This is a loyal reproduction of the Roadster Racing Association of Oregon (RRAO) Timing Tag from the 40s and 50s.
Bob Winters told me he made this tag in 1938, but RRAO, which governed track roadsters, was not formed until 1946 and lasted until early 1950s.
Black on aluminum, with some relief, this tag measures 1 1/2" x 2 2/1" and comes pre-drilled for mounting to your dash.
Reproduction Roadster Racing Association of Oregon Timing Tag...$10 (free shipping in the US).