cover Third type letter sheet, used from Nuneaton to Sutton Coldfield, showing faint strikes of red "COVENTRY" and black "BIRMINGHAM" datestamps and framed "No.1", red ink manuscript "Pd" and initialled "JWB" in black with date "10.7.41" at foot; filing folds. The only other recorded example of this letter sheet is in the collection of the National Postal Museum. Photo