If I'm not mistaken and my memory isn't playing too many tricks on me? Such signage was a top some "smaller Mobilgas" Stations... "Super Stations" usually had the much larger 7+ foot rotating neon Pegasus on their roofs.
"Here in Kelso/Longview area" there was a General Petroleum Station started in the late teens/early '20s; that was rebranded Mobilgas in the '30s. According to a "beat up photo" a neighbor of ours had; that I last saw in the '70s., (I've been hunting years for a copy of that photo) that little Station on South Pacific Way, had a similar small rotating Pegasus on top of it... According to the story, I was told (if I remember correctly) the sign only lasted for a few years in the '30s, as one of our Winter Storms sent it flying...
