Neat link, cool pics. I have the 3hp folder on the left, wish I had the case for it. Mine's a '68. The Evinrude Mate is mentioned in The Old Outboard Book; came out in 1940, 1/2hp, weighed 10lbs with a full tank of gas. Guess this is a later version.
I have an Evinrude 1/2 horse Mate. New condition. Has never been on a boat. No lie. Reply for it's history.
Post some photos of it if you can.
By the way, welcome to iboats.