![Keystone Rubber Band Powered Boat](http://www.collectingkeystone.com/wp-content/uploads/2013/12/IMG_0535-2-150x150.jpg)
This boat was propelled by a rubber band attached to the propeller. The boat is 11″ x 2.75″. The propeller is included in the length. This is a Keystone but it has not been matched to a model #.
From my private collection.
The History of Keystone Manufacturing Company From 1919 to 1967