Hi ... Being newish to the Forum I'm not sure if the following is 'old hat' or 'new' ...

There is a website called 'Britain From Above' which has hundreds, nay, thousands of oldish pictures taken from the air.   On the Chesterfield section there are loads of pictures of the Spire and, of more interest to me, the old Trebor Sweets factory and surroundings.

I used to work for Bassett's of Liquorice Allsorts fame, for a long time, and I visited the old Trebor factory a couple of times after Trebor was bought by Cadbury's and merged with Bassett's to form Trebor Bassett Limited.  It was obviously quite old but manufactured sweets in the old fashioned way ... Great to see.

The Britain From Above site is available on britainfromabove.org.uk ... And is well worth a look see.