Well, the mystery of who made it is solved. I was guessing a mid western company and I missed that. It was made in Quakertown or Philadelphia. This is one of the many thousands of small foundries that flourished around the Turn Of The Century.
Nothing like that going on in Quakertown at the present time. I can assure you of that.
Okay, now about the actual stove. You have a double heater and from what I can see of the castings, it is a high end Oak type stove. This stove will be a great performer as you get both radiant heat and hot air at the same time.
You need to line the inside of the fire pot with a refractory lining. This will allow the fire pot to last virtually forever and it will raise combustion efficiency somewhat.
You MUST do this: Take the original grate and send it off be copied. Take the copy and use it in the stove and keep the original safely away as a master. You will not easily find a replacement grate for this stove so have the grate recast. Tomahawk Foundry is the place to have it done. They are fast and do the best quality work.
Replace all of the bolts with new ones.
Closely inspect the barrel for thin or burned out spots. Any decent sheet metal shop can roll a new barrel for the stove for a reasonable price if you need to have it done.
Get a good quality cement to reseal all of the seams. I recommend Hearthstone or Hercules. These cements are fiber based and excellent for this purpose.
Take your time and do every thing correctly. The seams must be completely free of rust, dirt and scale before you reseal them. If not the cement will not bond well.
The most expensive item will be having the nickeled parts re-done. If the original nickel is sound a good polishing will be all that is necessary.
Be careful of the bottom sheet on the stove. If you drop the stove somehow and crack the bottom plate, the stove is rendered useless.
There is plenty of help here,so;don't hesitate to ask lots of questions.