, unused, straight-edge at foot; a trifle soiled and perfs at right ragged. Rare. (from the collection of Dr. Conrad Latto). S.G. 55. Photo" /> Specimen 6d. sepia with manuscript<I> "Specimen"</I>, unused, straight-edge at foot; a trifle soiled and perfs at right ragged. Rare. <I>(from the collection of Dr. Conrad Latto)</I>. S.G. 55. Photo | Christie's