Keys: Their history and collection: No. 560 (Shire Library)

Not the most info packed book on keys, but a good introduction for collectors or those with an interest in keys.

I enjoyed this book. The illustration are particularly interesting. Filled a gap in my mechanically knowledge . Even the "modern" yale was well covered.

It was just what I needed for a class I am taking. It contained all the relevant info plus some pictures.

Excellent

very good thank you