That Roper Charm (as in hath no charm) is in remarkable shape given its age and the way those high oven ranges deteriorated in use unless kept super clean.
Imagine facing that 1930s Tappan first thing in the morning. You would almost need to keep a pair of dark glasses outside the kitchen door; definitely not a stove for the cook who drank.
I was intrigued several months ago and did some research, ISTR that Skelgas ranges were made by Vernois in Mount Vernon, IL. Apparently Skelgas had a significant market in appliances throughout rural areas.