On the Bookshelf

Five years ago we got a new conservatory built at the back of the house. Looking for the maximum light we went with a glass roof. MISTAKE ! In winter the place is like an ice box and in summer it's like an oven. Next weekend the builder is coming to take the roof off and to replace it with a regular roof and interior ceiling. It might just solve our problems.
We started the big clear out today. Everything has to come out for stowing elsewhere in the house until the job is finished. This includes my little bookshelf of odds and ends. Take one look and see if you can guess my secondary interest. Secondary to photography, that is!