NCB/A/BUT/3/6/5 | Butterley Company correspondence file on the hours of work and employment of boys and on... | Mar 1937-Feb 1944 | Butterley Company | Derbyshire Record Office |
NCB/A/BUT/3/6/6 | Butterley Company correspondence file on hours of work and the employment of boys, mainly on... | Jan 1944-Aug 1944 | Butterley Company | Derbyshire Record Office |
NCB/A/BUT/3/6/7 | Butterley Company correspondence file on hours of work and the employment of boys, mainly on... | Aug 1944-Nov 1945 | Butterley Company | Derbyshire Record Office |
NCB/A/BUT/3/6/8 | Butterley Company correspondence file on hours of work and the employment of boys, mainly on... | Apr 1945-Feb 1946 | Butterley Company | Derbyshire Record Office |
NCB/A/BUT/3/6/9 | Butterley Company correspondence file on Hartshay Training Centre | Aug 1944-Jul 1945 | Butterley Company | Derbyshire Record Office |