Sowerbutt's Wallet

Putting on a pair of cotton gloves, the Brigadier slid an oilskin wallet across the table to Gerard. “This is the letter to show the notional Blackshirt groups. We have an inspired writer and the Scribe is better than the original. The wallet is German, taken from a Kreigsmarine officer now in our custody. It is clean of fingerprints, so only yours will be on it, Mr Gerard. Your adversary is a careful man."
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