1893 Surcharges 3c on 4c Carmine and Green error 'Surcharge Double', large part OG and lightly mounted, with guarantee handstamp on reverse. With photocopy of 1987 RPSL Certificate for pair, of which this is the right hand unit. SG 15b, cat £475
Lot 689
Estimate: $350
1901 Surcharges 3c on 16c Chestnut and ultramarine error 'Surcharge Double', large part OG with faintest trace of hinge, very fine, with 1970 BPA Certificate. SG 38b, cat £500
Lot 690
1901 QV Surcharge 6c on 8c, variety \'surcharge inverted\', thin spot, mint, with 1979 RPSL certificate. SG 40a cat £650