| Description | Box-listed items are itemised below. The box also includes D1851/40 and part of D1851/54
Items 1-5: Numbers not used
Item 6: duplicate of D5029/32/10 - disposed of Nov 2024 BS
Item 7: Gas exhausting and plants catalogue, 1926
Items 8-13: Numbers not used, nd
Items 14-18: Valve catalogues, 19th-20th cent
Items 19-24: Gas compressor catalogues, 19th-20th cent |