Design 1906 International Reply Coupon as block of four 3 d Queensland. This block of International Reply Coupons belong to the scarcest postal stationery and is a key item of any exhibition collection. The importance and real value is still very much underestimated - highlight of every postal stationery or country collection. This offer comes from the collection King Fuad - this block of four is probably unique in private hands. (T) (Image)