Folded Dimensions: 3 ½" X 9 ½"
Open Dimensions: 18 ¾" X 38 ¼"
Date Determination:
Cover Description:  A blue area across the top of the cover bears the title.  A blue area in the center of the cover has an illustration with large B-A sign showing over a set of pumps with a car stopped near them.  An attendant is rushing out to serve the customer.  The slogan " You Always Buy With Confidence at the Sign of the Big B-A" is below the illustration in a dark blue area.
Date Code:
Main Legend Side Features:
Opposite Side Features:
Other: Compiled and drawn by J.H. Whitelaw. A. Hay Chief Draughtsman. Lithographed in Canada by Copp Clark Ltd., Toronto, ON.  Base map used in this edition is the same as the Official Road Map of Ontario produced by the Ontario Government.

I do not have this map in my collection, Dave Goforth; another member of the Road Map Collectors Association, has been kind enough to provide a scan of his map to me to be included in my web site.
The information above is based on what Dave supplied to me.