Lot 639
639
unmounted mint -- 20c. strip of three, the left-hand pair sharing double paper join affecting imprint on left-hand stamp, unmounted mint; tiny mark on gum of centre stamp. S.G. 1020. C.P. P15b(Y), $750

Details
unmounted mint -- 20c. strip of three, the left-hand pair sharing double paper join affecting imprint on left-hand stamp, unmounted mint; tiny mark on gum of centre stamp. S.G. 1020. C.P. P15b(Y), $750