- 1Receipts for external loans of apparatus (CORP/SCM/Z/019)
1861 - 1883, item - 2Model room register for ships and associated objects. Possibly from the Admiralty Model Room (CORP/SCM/Z/020)
1838 - 1864, item - 3Alphabetical list of exhibitors with description of exhibit, and dates of presentation (CORP/SCM/Z/021)
1856-1879, item - 4Patent Office Museum Register. Lists exhibits in numerical order of acquisition, with description, dates etc (CORP/SCM/Z/022)
1856?, item - 5Curator's out-letters books. These two volumes are indexed by correspondent, and chiefly concern new exhibits for the Museum (CORP/SCM/Z/023)
1871 - 1896, file - 6Letterpress copy book (CORP/SCM/Z/023/1)
November 1871 - October 1878, item - 7Letterpress copy book (CORP/SCM/Z/023/2)
October 1878 - July 1896, item - 8Patent Office Museum correspondence (CORP/SCM/Z/024)
1858 - 1880, file - 9Letters 240- 509 (CORP/SCM/Z/024/B)
1858 - 1859, item - 10Letters 786-1064 (CORP/SCM/Z/024/D)
1862 Mar - 1864 Dec, item - 11Letters 1065-1255 (CORP/SCM/Z/024/E)
1865 Jan-1868 Dec, item - 12Letters 1256-1472 (CORP/SCM/Z/024/F)
December 1868 - December 1870, item - 13Letters 1473-1658 (CORP/SCM/Z/024/G)
January 1871 - April 1874, item - 14Letters 1659-1838 (CORP/SCM/Z/024/H)
April 1874 - March 1877, item - 15Letters 1839-1973 (CORP/SCM/Z/024/I)
March 1877 - 1880, item
