North Borneo Labuan 1904-05 $1 blue, type 21 local overprint, block of 4, cancelled-to-order with an oval of bars, SG139.
A fine used block. Folded horizontal perforations, which is immaterial as a spectacular multiple and believed to be unique.
Accompanied with a 1976 British Philatelic Association (BPA) certificate of authenticity and a 1977 Friedl Expert Committee certificate of authenticity.
Provenance: Ex the 'Midas' Collections of Labuan and North Borneo (Christie's Robson Lowe sale 17/12/91, lot 312).
Stanley Gibbons catalogue value: £4,000+.
