Front to back – track wheel with horizontal table with four legs and treadle; drive wheel with eight spokes on post; two posts hold track with a metal rod on which the accelerating spindle head travels. Middle wheel – Wooden frame with two solid wheels and treadle on right end; accordion arm holds spindle head. Last – X-frame for pendulum wheel has drive wheel and treadle on right; counter weight on end of X-frame, pendulum arm and spindle missing. Each wheel has descriptive page in a holder in front of it.
