The Musical Box Society of Great Britain holds an archive of material relating to all aspects of Mechanical Music.  A valuable research source it includes:-

A comprehensive library of books, mostly in English, but a few non-English, many now out of print.

An extensive collection of publications from other mechanical music societies around the world.

Copies of press cuttings, tune lists, auction catalogues, catalogues and leaflets for museums and collections, documents and ephemera.

A selection of material on audio, visual and digital media.

Material is not normally loaned out, but may be inspected by appointment.