used 1867 cobalt OG, neatly cancelled; small thinning and upper right corner rounded. A scarce shade. B.P.A. Certificate (1988). Photo | Christie's

拍品 815

815

used 1867 cobalt OG, neatly cancelled; small thinning and upper right corner rounded. A scarce shade. B.P.A. Certificate (1988). Photo

细节

used 1867 cobalt OG, neatly cancelled; small thinning and upper right corner rounded. A scarce shade. B.P.A. Certificate (1988). Photo