A Rare Prinzen Size Iron Cross 1St Class 1939 By Zimmermann certificate_of_authenticity the only U-boat commander to

the only U-boat commander to be so commemorated

with postage stamp and Reich stamp

dark highlight on the bottom from previous sticker application

His Medical Board Report of a Disabled Officer dated April 27

six Letters from Johnson to his Mother (dated 1942-1943)

A Rare Prinzen Size Iron Cross 1St Class 1939 By Zimmermann certificate_of_authenticity the only U-boat commander toMagnetic core, silver frame, pin marked 900; 29. 45mm x 29. 73mm, it weighs 6. 4 grams; slightly rusted, in good condition. This cross was recovered from a bombed out Zimmermann factory (the large quantity of goods from destroyed Zimmermann factory was purchased by eMedals circa 2000, this cross being a part of that large lot). A very rare Prinzen size cross.