This is an early Jacrim and that can be discerned by the style of the Seaworthy logo on the cabin and the “Really Hollow” life ring on the bow. Another early feature is the propeller is cast, not tin. The boat is 18″ long and is a mechanical wind up with a stop/start lever. Like I said this is early but this design did not change much over the next several years. There were several designs that were called the Flying Yankee #65.
from my private collection.