Butterley Company file of typed copies of list of damages at Portland No. 2 Colliery for falls of roof due to the workings of the New Hucknall Company's Bentinck Colliery in the lower mines Covering the period 3 Apr 1907-9 Jul 1909, comprising falls and damages reported to Head Office, with columns for date, district, description of damages, by whom reported, date of inspection by the New Hucknall Company, area (i.e. name of landowner) and remarks. Apr 1908-Jul 1909