Seeking help in identifying a scuba device
I have a scuba device that I am trying to find some help in identifying. Is anyone knowledgable on this? I have pictures of this device that would pull the diver out to sea where he or she can dive and then pull them back to shore when done. It is white on top and red on the bottom and is three feet long, two feet wide with a gasoline motor and handles for helping the diver stay with it. This device is from the 1950 or 1960 and is made in Italy.