Kessler brochures courtesy Dean T Fletcher.

 Top-Kessler Air Rifle

 Bottom-Rochester Air Rifle

Then there was the Model D.
All the Kessler models have the same action. However, there are 3 different stocks. There is the slab sided stock (much like a Town and Country Jr.) with no butt plate. Then there is the large stock, made of walnut, that looks a bit like a Sheridan model A. Then there is the super Kessler also with walnut stock but sporting a carved cheekpiece and chrome plated barrel, compression tube, and cocking knob.