Ms. Laura McCarthy of Florida found this map in a thrift shop in Orange County, NY several years ago. She sent it to me so I could share it with everyone.
The map is on the back side of the Orange County Chamber of Commerce letter head (image above).
Those were sure simpler days, the Telephone number for the Chamber of Commerce was 537.
If you would like a full-size copy of the map in PDF format, I have added one for you to download. (NOTE: the file size is 460K)