First, welcome aboard
second, the boats were made by Mirro over 50 years ago, then the name was sold to Northport in TN in about 1970 when Mirro got out of the boat business in Manitowoc in about 1970, and completely went out of business decades ago. (born and raised there).
emailing companies is useless. pick up the phone and call. however since the serial number pre-dates a HIN and the tag has Manitowoc, my guess is you wont find any information
that being said, it looks like an early ski-n-troll. Mom bought one for Dad back in 1974
what other information are you looking for? its a 14" boat, rated at 45hp, needs transom cut down a few inches to properly rig a merc 50 short shaft, however will absolutely fly with only the prop in the water with that motor.