If you have an unusual timer along with original box's, instructions, trade journal ads, etc. I encourage you to post them on this timer thread I started on the MTFCI forum.
I venture to guess that hundreds of different timers were produced over the life time of the Model T. It would be fun and educational to see as many as possible along with related ephemera all in one place on the net that doesn't lock the thread at the close of the year.
HERE'S THE LINK.
http://www.modelt.org/mtfcivb/showthread.php/132-Ford-Model-T-Timers-Archieve