Bank of England, Percival Spencer Beale (1949-1955), 1 (18), ND (1950), serial number prefixes H37B, H--B, J12B (pair), K06B (pair), green and blue-mauve, ornate crowned vignette of Britannia at left, value at right, reverse green, value at left and right, also all prefixes L--B through Z--B (EPM B268), first 4 notes uncirculated and the H37B a first run, the last group extremely fine to uncirculated (18)