Lamoreaux swingarm conversion kit for rigid Triumph

I recently found this 3" over swingarm conversion setup that appears to be the kit offered by Wilbur 'Lammy' Lamoreaux in the early 50's. Paul at Show and Go posted an old article on the Martin swingarm conversion, and it shows the 'Lamoreaux & Ryan' kit- note the pinched swingarm, fender brackets and vertical brace under the seat springs. Also, I took a few pics of a bike at the 2010 Catalina GP running the same setup, but was unable to locate the owner. Here's a few pics.