There is a thread with diagrams of the base heater/baseburner stoves.. I'll try to find it.. But the 'Our Glenwood and Crawford #2 type of stove is harder to diagram, and was very confusing to me until the light finally clicked on one day.
The things I see that make this NOT a base heater :
There is NO grill or ventilated surround around the top of the firebrick, where the hot gasses off the fire would be drawn down around the outside of firepot into the base of the stove, like in the '"Our Glenwood" stoves.
There is no back 'box' with exhaust passageways for the exhaust gasses to leave the back of the cylinder, go down to the base, make a circuit under the double-bottom ashpan box, then return back up to the flue exit.. There would be two levers at least on this box to control dampers. No Back Box: not a base heater.
The indirect pipe on the back rests on a very small protrusion on the base of the stove.. in the 'Our Glenwood' stoves, this protrusion is much larger, allowing the circulated exhaust to get into the base of the rear pipe and leave the stove, on this stove, there probably is a small cleanout door in the back of that protrusion to clean out the fly ash that accumulates in the base of the indirect pipe..
I think you can see ash leaking out of the seam in the back pipe in one of the photos..
If William or other more knowledgable stove gurus find me wrong in any of the above statements please correct me,,