1941 60c Air Mail stamp, original essay in the issued design, the photographic vignette applied to photographic frame design, both partly handpainted over in black and Chinese white, with handpainted value tablets and lower inscription, on white photographic paper (71x80mm) applied to thick card, 154x166mm, variously endorsed "original", 3 Chocolate Brown", "Colombia", "20670", "F10825" and dated "6/10/40". A unique essay from the American Bank Note Co. archives.