unused  2c. slate-blue, a vertical pair (centred low and left), hinge remainder, large part original gum which has slightly yellowed. All multiples are very scarce. Yang F9a. Photo
unused 2c. slate-blue, a vertical pair (centred low and left), hinge remainder, large part original gum which has slightly yellowed. All multiples are very scarce. Yang F9a. Photo

Details
unused 2c. slate-blue, a vertical pair (centred low and left), hinge remainder, large part original gum which has slightly yellowed. All multiples are very scarce. Yang F9a. Photo