− Decrease quantity for Bank of England (B355) Gill, £20 error, 1988, reverse-to-obverse ink transfer, serial no. 40N 450521, 5mm tear, Good VF Quantity + Increase quantity for Bank of England (B355) Gill, £20 error, 1988, reverse-to-obverse ink transfer, serial no. 40N 450521, 5mm tear, Good VF Add to cart