2005 (June 30): Merowe Dam Project 400 d. multicoloured, an unused corner block of four from the lower left corner of the sheet, variety "300d." for "400d." in value tablet, fresh and very fine, unmounted og. A rare and unlisted variety.
2008 (Jan): 2 SDG in red on £S8 Devil Firefish, an unused block of twenty-one (3 x 7), marginal from right of sheet, variety "Surcharge in Red Inverted", leaving the original value un-surcharged, fresh and very fine, unmounted og. Rare Gi = £ 1'050+.
1980: Postage Due 10 m. deep blue-green & magenta and 20 m. blue & scarlet vermilion, wmk. Rhinoceros, each in an unused block of six (3 x 2), fresh and very fine, unmounted og. Listed but unpriced by Stanley Gibbons Mi = € 1'800.