The Director of the Munich mint, Köl, encouraged Goetz to create a 5 Mark pattern on the occasion of the 80th birthday of President Paul von Hindenberg. The pattern (K-387) was presented to the Ministry of finance in Berlin, which subsequently did not approve it. “The time is not ripe” they said, and advised Goetz to remove the 5 Reichsmark inscription and change it into a commemorative medal. Goetz did just that and thus was born K-386 which you picture above.
This is the Goetz medal with the largest circulation. W & Company, his publishers for the piece, sold approximately 130,000 silver strikes, several thousand gold, and as many bronze strikes. Goetz had a contract with W & Company which provided that in addition to his fee of 3000 Marks, Goetz would receive 10% of the net profit for the silver and 15% for the bronze and gold medals. He never received any of the additional percentage.
BTW, This medal was never struck in proof, but in the general “BU”. The piece is often mistaken for a coin by many collectors while in reality only a couple of actual 5 RM patterns of the coin actually exist, and then, only in museums.
Below is an example of the far rarer K-475 piece commemorating seven years as president for Hindenburg. You’ll note the only difference between the K-386 and the K-475 are the dates in the exergue and the obvious absence of the “D” Munich mint mark on the K-475. This piece IS in proof.