Hi CWJ1898,

As you may presume from the lack of response there is no dedicated reference.
Skennerton makes scant reference and some good photographs but not worth buying the book.
Skennerton also publishes a reprint of the BSA 1912 catalogue which is well worth it's price.
A contributor to this forum (jc5) I believe is gathering material for a book but such a labour
of love can be a long time coming.

Regards - Rowdy