ST. LUCIA, 1892, -1/2p on 3p Lilac & Green, Surcharge on Back (40d; SG 56c).
One full surcharge and one light surcharge on front, full surcharge on back (listed in the Scott catalogue as "triple surcharge, one on back"), original gum, fresh colors, Fine, an unusual and rarely seen error, with 1977 B.P.A. certificate, SG £1,100
Image Magnifier / Download
View PDF of certificate
Power Search for Comparables