- 1Business records of Grimshaw Brothers Limited (YA2007.92)
1866-c1970, fonds - 2Navigation Training Appliance and Ordnance Survey Map (YMS0047)
1941 - 1943, fonds - 3Operational records (YA2007.92/6)
c1900-1963, series - 4T. & C. Clark & Co. catalogue (YA2007.92/6/4/3)
1922, item - 5Trade literature (YA2007.92/6/4)
c1900-1965, sub-series
