Excellently researched, well written and very well illustrated with period pictures and reproduced adverts. Heartily recommended for the more anorak inclined amongst us. A really useful reference for identifying gear mechs. I paid £40, not bad value considering its size, but then found out that it is easily available for £28 from that scourge of the book trade, Amazon.
Significantly better would be to buy a copy from the author, who has also has a fine dedicated website:
|The Dancing Chain front cover.|