637A variety, CSS 1008, 1946, Second Shanghai Union Surcharge, $70 on 13c blue green, Very Scarce, lightly hinged (CSS catalog has been chenged to explain that the "used is only found favor cancelled")

637A variety, CSS 1008, 1946, Second Shanghai Union Surcharge, $70 on 13c blue green, Very Scarce, lightly hinged (CSS catalog has been chenged to explain that the "used is only found favor cancelled")