I bought it and believe me, is looks nice:

http://www.britishrobotics.com/pictures/BRCandice/BR770168Desc.htm

"The possible gear ratio configurations are 12.7:1, 38:1, 115:1, and 344:1"

Sounds great, doesn't it?

Hi there, thanks for the link. A site which needs a lot more investigating.

cheers

Jim