China 1897 (Aug) Tokyo Tsukiji type foundry printing. SG104bChina 1897 (Aug) Tokyo Tsukiji type foundry printing, 50c deep green error of colour, SG104b. A fine quality example with large part original gum and some typical light gum toning. This stamp, depicting a Carp, was from the first issues to be inscribed Imperial Chinese Post. The error arose with the 10c colour being used in error instead of the intended bright yellow green of the 50c stamps. It is a rare stamp error of colour, yet remains available at