It appears that the Japanese Moth class got it start in the 1960's as a scow class sponsored by Coca-Cola. Here is the Japanese history as told by Ohno San;
"This photo (shown below) is from Kensaku Hashimoto. His dad was the Japanese distributor of Coca-Cola. Coca-Cola-Japan got the lines drawing of the Peter Milne “Hurricane” scow Moth and sponsored the Okumura boatbuilders to build, in fiberglass, about 60 of the Milne design scows. As you can see from the photos, the Coca-Cola Moths had sails with a red stripe but didn’t sport the Coca-Cola logo.
Wooden masts and wooden booms.
This scow shown below may or may not be one of the original Coca-Cola Moths but it does have the double chine characteristic of the Milne "Hurricane" design. Also the halyard seems to be stored as in the other photos of the Coca-Cola Moths.
The number on this scow, 272, is a bit high for a Coca-Cola Moth but it does sport a red stripe on the sail. (The red stripe being higher up than the lower number Coca-Cola Moths.)
Bio Video from the Art Shutter Channel
18 hours ago