Ok, I'm confused. If it's a 1937 model then why does the Robert Parks Co nameplate have a 5 digit zipcode and a phone number that is all numbers. Being an old fart, I recall the 1950's and early 1960's when ( at least in Maryland), all phone numbers were 2 letters followed by 5 numbersm and 5 digit zipcodes weren't used until sometime in the late 1950's or early 1960's. For example, I lived in Towson, 4, MD. Now it is Towson, MD 21204.
Perhaps it was re-sold and a new nameplate was added??
Tom