1912 engraved at Peking, an accumulation with $1 and $2 overprinted Specimen (cut down and mounted on paper), mint blocks with $1 (339) and $2 (243) plus the set of three used with additional 20c. (3)

Details
1912 engraved at Peking, an accumulation with $1 and $2 overprinted Specimen (cut down and mounted on paper), mint blocks with $1 (339) and $2 (243) plus the set of three used with additional 20c. (3)