Looks like a Grandpa III. The two stoves similar are Grandma and Grandpa. Here are a few ways to tell without more pics;
Grandpa will have 6 bricks across the inside back compared to Grandma having 5. (if the bricks are in it)
Otherwise go by the door opening measurement. Grandpa opening will measure 21 wide X 11 high. (Grandma opening will measure 17 wide X 10 1/2 high)
If this is a Grandpa, the screen is rare. They can sell for around 200.
The feet are averaging $400 a set now on eBay. Years ago they averaged $100 which ws reasonable. They have gone crazy the last couple years. They fit any Fisher Stove with angle iron legs.
As far at stove value; The biggest deciding factor is having a UL tag on the back. Very few made in this style had tags. Depends on year. The Listed model had a rear shield and no angle iron corners. The box had bent corners made in one piece. This stove was built like the pre-UL model for installing on a fireplace hearth or in a non-combustible basement with cement floor and wall. UL listing was not required back then.
Most states have adopted the International Family of Codes where the Mechanical Code requires ALL appliances to be UL approved with tag affixed. Without being tested, they cannot legally be installed in states that have adopted this code. So that should affect price. There is a used stove market since many still buy and install to the safe NFPA 211 Standard which was in effect before local jurisdictions adopted the more strict codes. The code is only for new installation, and does not affect pre-existing installs. So people continue to install them and claim they were existing, so they are grandfathered. Not legal, but is still common since it is difficult to tell when a stove was installed.
Price fluctuates by season. They are a very seasonal item. Now being the lowest, Fall the highest. Where in the South they seem to sell for much more, $400 to $500 possibly, in PA and your area more like $100 or $200. More when reconditioned with fresh paint. These are only estimates since there is no book value, and all Classic Stoves are only worth what buyer and seller agree upon. A buyer has to make sure the sides are not warped, no cracks around exhaust vent, air dampers work free, bricks are intact and usable. Like looking over a used car, you can't tell by one pic or two. Others that want them for collecting purposes (those of us that know what we're looking at) are going to offer much less for this one. Rare models, unfired, or those with glass doors, good nickel or brass plate demand a premium.
This also looks like the Metallic Brown option. Nice when refinished with the original paint still available, but many don't know it and simply paint them black. (shame on you, you know who you are) If the paint is in good condition on the screen, you have a winner there.
The object to collecting is picking something like this up for $200 and reconditioning the stove to its original color, having the rare screen with it, and selling the feet to double your investment! Win / Win. (and the reason I'm out of room for stoves)