Glad to add to the discussion. I have been trying to find info about these cars since I have owned it.

I also know of another 4-speed RO car that used to be in Maryland and belonged to a friend of mine. It was red and black and was called the "Solomon Shaker", originally came from Michigan.

FYI - the photo in your post looks like it was taken at 75-80 Drag Way in Monrovia, MD. Also, Jerry's car was featured at 75-80 in Car Craft magazine in the November 1977 issue (very small black and white photo).