AVAILABLE TO SELL, I HAVE A DUPLICATE! A Gold medal that was given to the winner of specific events which were held on the Encino Velodrome Track in Los Angeles, CA, sponsored by the SCCA (Southern California Cycling Association). The diameter is approximately 46mm (1 13/16 inches), the thickness is 3mm. See the picture gallery for the reverse side which shows the ABL of A logo (Amature Bicycle League of America) and two track cyclists.