"Garth Almgren" wrote in message
http://www.smalloutboards.com/j272.htm
I've got this exact model sitting in my Dad's garage. It pushed
Commando's Penn-Yan around from 1942 until about 3 or 4 years ago. It
still runs, but it finally became too balky to be worth the trouble of
clamping it to the dinghy's transom, so we replaced it with an electric
motor.
The Johnson 1.5hp shown in the above link is a 1968 model which was first
introduced that year. In later years it evolved into a 2hp size with a
recoil starter. It is not a ducktwin, which was an olive-brown painted twin
cylinder 3hp.