Yes, thanks I've reached out to W Richards in the past with no success. I used to have contact with David Baker who also has that information (not surprisingly). I'll try both again now that I have a few other Horsley's it would be interesting to track down more detailed information on. One in particular is one of the "lost" transitional sidelocks reputedly destroyed, as discussed in his excellent book on Horsley. It turns out it wasn't and it has some interesting modifications that make the proposed failures appear more complicated .... but that's another story.
Jeremy
