Bank of England, Leslie Kenneth OBrien (1955-1962), 10 shillings (5), ND (1955), various prefixes L--Y, K--Y, J--Y, H--Y and E--Y, one with serial number 444333, brown, ornate crowned vignette of Britannia at left, value at right, reverse brown, value at left and right (EPM B271), extremely fine to uncirculated (5)