Centrifugal impeller for A or liquid oxygen (LOX) pump. The drawing originated in Aug 1943 and was superseded in December 1944. A key to the image hatching can be seen with the label 'Hochbeansprucht' which in English means Highly Stressed. Next to the drawing numbers two secret three letter armament codes can be seen indicating the 'origination' of the document. The top one mpe = Heimat Artillerie Park 11 (HAP or Army Artillery Range). The lower code ebb = Klein Schanzlin & Becker AG, Frankenthal.
Signatur FA 014/02542 (Digipeer.de image)
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