- 1Business records of Grimshaw Brothers Limited (YA2007.92)
1866-c1970, fonds - 2Administration Records (YA2007.92/9)
c1890-1962, series - 3Leaflet for ATM Intercom system (YA2007.92/9/5/12)
1951, item - 4Administration reference material (YA2007.92/9/5)
c1900-1962, sub-sub-series - 5Catalogue 'Telegraph Apparatus’, No 4 (MS/2159/1)
1912-09, file - 6Catalogue ‘Telegraph Apparatus and Accessories’, No 39 (MS/2159/2)
1921-01, file - 7Catalogue ‘Telegraph Apparatus and Accessories’ (MS/2159/3)
c. 1925, file - 8Catalogue ‘Vyle’s direct reading polarised sounder’, No 79 (MS/2159/4)
1927-04, file - 9Advertising poster for Vyle’s telegrapher sounder entitled 'Wherever Telegraph Men foregather' (MS/2159/5)
undated, item - 10Journal entitled 'The Telegraph Chronicle and Civil Service Recorder', issue 2 (MS/2159/6)
1904-12, file - 11Advertising poster for Vyle’s polarised polechanger entitled 'Wherever Telegraph Men foregather' (MS/2159/8)
undated, file - 12Journal 'The Post Office Electrical Engineers’, Vol 3 Part 1 (MS/2159/9)
1910-04, file
