I know that intersection well, as I live about 5 miles down CR 27, known locally as the Kingwood Pike. Arthurdale is about a mile to the left on State Rote 92. My grandparents were original Arthurdale homesteaders, and I've traveled through this intersection my entire life (nearly 70 years as of this writing). The log building was erected as a law office several years ago.

How much the price of gas was?

If you take a "ride" on Vitagetvs' Google Streetview a little ways, the small building to the right of the cabin on WV-7 is the exact same shape as the building in the original posting. The front façade with the 5 posts and roofline hide it, but if you travel just past it and look back, you can see the stepped roofline and even the small square side windows, just like the gas station.

first known as “The Reedsville Project”, one of Eleanor Roosevelt's "Love Babies."

There's something you hardly see anymore. No, not the gas stations, the public telephone! --By Bell Telephone yet.

Someone on Reddit found the location using property records:

https://www.reddit.com/r/WestVirginia/comments/bj6yf0/gibson_motor_compa...

Apparently, the Lot that Log Cabin sits on is PT LOT 1 GIBSON MOTOR CO.

Since my name is Arthur, I was intrigued by the signpost pointing to (I assumed) Arthurdale. Indeed I was correct in my assumption. A little further probing and it turns out Arthurdale has quite a story behind it!

https://arthurdaleheritage.org/

It's either this intersection, or it's not.

Pros: Intersecting Highways with Arthurdale in the correct direction, remnants of a driveway in the yard, Stop sign on a steep incline.

Cons: Lack of a concrete block building.