1970 USA SOM 40th Anniversary medal by Julian Hoke Harris. Silver: 64MM./184 gm. #32 of 125 Minted. Obv: Included the images of the obverse of 1st Issue and the reverse of 80th Issue, with 40 border discs representing entire series of medals. Rev: Shows positive and negative images of the Owl design, frequently found Greek coins, illustrative of the positive and negative techniqui of making a medal,