He appears to have been a 'Matchless G3/L (350cc)" motorbike driver attached to a heavy construction unit, possibly as a convoy outrider, and he fought in the North African and Italian Campaigns. Produced in September 1943 for the Allied Invasion of Italy, it's arelief map (giving heights above sea level) and also includes Pescara, Penne, Sora, Sulmona, Teramo, Lanciano, Ortona etc.
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