Bank of England, Basil Gage Catterns (1929-1934), 1 (5), ND (1930), serial number prefixes W67 (2), X01, Y25 and Z77, green and blue-mauve, ornate crowned vignette of Britannia at left, value at right, reverse green, value at left and right (EPM B225), the Z a last series, X01 extremely fine, others uncirculated (5)