Fine original, antique hand colored Swallowtail Butterfly engraving - Papilio Machaon / Swallow Tail B and Papilio Podalirius / Scarce Swallow Tail B This is Plate 4 from Jardine's Naturalist Library, London - Mid 1800's. Print measures approximately 3 7/8 x 6 1/8 inches. It is in very good condition with light scattered foxing, toning and tiny tears/chips along the outer edges. Binding edge untrimmed. Should mat and frame nicely.