Hello Fionn,
I see you've had enquiries about pit photo’s, have a look at www.picturethepast.org.uk there are thousands of historic images from Nottinghamshire and Derbyshire including lots of mining photo's, most of which can be ordered on line. 

Also a visit to the Mining Heritage Site at Mansfield
It is well worth a visit. They have hundreds of photographs of every colliery in Britain that was working from 1947, these are viewed by computer screen, you have to make an appointment and give yourself a couple of hours,

The mines rescue stations are also included, well worth a day off work might see someone you know in the photographs. 

Telephone 01623 638233 or 01623 638235.

The address is 200 Litchfield Lane, Berry Hill, Mansfield. They are open Monday to Friday office hours.