Auction 333-341 Nigeria, Cameroon, Sudan & Worldwide Postal History - Day 4

Postal Orders: 1951: King George VI, 40 s. red, overprinted 8 d. five bars type T4TA, original poundage 6 d., three punch holes, dated 7 August 1956, single circle "BENIN CITY" cancel, fine and rare; the only recorded of this type.
Note: The punch holes, often found on high-value postal orders, were to facilitate accounting after the orders were cashed.
Reference: The Postal Stationery of Nigeria, by Peter Hørlyck, illustrated on pg. 199.