Shown here is an armourer busily engaged in cleaning the 7.7 mm (0.330 in) Brownings of Lancaster B.Mk.I, PO-U, (PB754) of No.467 Sqd, RAAF, based at Waddington. The armourer is using the standard pull-rods of the period and with an ample supply of 'four by twos' at his feet.
