GREAT BRITAIN 1977 (MLH) ROYAL INSTITUTE OF CHEMISTRY CYLINDER BLOCKS
Royal Institute of Chemistry Centenary cylinder blocks x 6 (4 items): 8½p (2A–1B–1C–1D–2E–1F–1G), 10p (5A.–1B.–1C.–1D.–1E.–1F.), 11p (3A.–1B.–1C.–1D.–1E.–1F.), 13p (2A–1B–1C–1D). Fresh and fine. Mint lightly hinged. SG1029-1032; SC806-809
