Liberia, 1919, 10¢ Monrovia, Triangle Essay. Pencil drawing and watercolor fill, on brown wax paper mounted on thick card, with Perkins, Bacon & Co. cachet handstamp on reverse; some wax paper tears and chipping at sides, F.-V.F., unique, ex Bruns. Scott No. F18E  Estimate $150 - 200. $0 (Image)