Western Australia # 22P - 1861 Unused, VF

4p Swan, dull claret Imperforate proof pair in unissued color, lower left sheet margin The issued version of this stamp was printed in vermillion and perforated, and singles have a catalog value of $1550 each. This imperforate proof was a color trial for a different color. This desirable pair comes from the lower left corner of the sheet as indicated by its large margins.