Liberia, 1952, 3¢ Ashum, Trial Color Plate Proof on Wove, Imperforate. Frame only in red, vertical gutter pair, o.g., never hinged, creased between stamps as always, rich color, tiny spot in top stamp, F.-V.F., one of only 5 known to exist. Scott No. 334TC  Estimate $150 - 200. $0 (Image)