In 1952, Walther licensed production of the PP series pistols to a French company, Manufacture de Machines du Haut-Rhin, also known as Manurhin. Manurhin made the parts but the pistol was assembled either at Saint-Étienne arsenal (marked "Made in France") or by Walther in Ulm (marked "Made in West Germany" and having German proof-marks). The French company continued to manufacture the PP series until 1986.
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