I have just come across the following on Ebay - appears to be a DVD
containing 22 books.
I don't know how common/rare these are, but the price seems reasonable!
http://www.ebay.co.uk/itm/22-Vintage-Books-Bell-Change-Ringing-Hand-Bells-Foundry-Campanology-/140679135881?pt=Non_Fiction&hash=item20c1214289
Jonathan