Operation Bernhard, C.P. Mahon, a Bernhard 10, Birmingham, 24 December 1926, serial number 105/V 54606, black and white, ornate crowned vignette of Britannia top left, value in black tablet low left (EPM B216a for type, Pick 329 for type), in PMG holder, tears, 35 Choice Very Fine, rare and the only use of this signature and branch in the Operation Bernhard series