Specimen Perf. 14 2c. dull green, 4c. rose and prepared for use but not issued unsurcharged 24c. brown-purple, each overprinted "SPECIMEN" (Type D12), also another 4c. rose overprinted "SPECIMEN" diagonally in red (Type CE4); fine with some to much original gum. S.G. 147, 149, 152. (from the collection of Dr. Conrad Latto)