"the Flag of Imperial Japan @ <a href=""https://www.youtube.com/watch?v=b6utGZQ9Sks&amp;t=0m11s"">0:11</a> ?",(reply>), Evan Holm nope. It's a common heraldic symbol, often used on historising flags, also on painted window shutters. You have a small coat of arms at the center," then wavy radials in contrasting colors filling the background. E.g. <a href=""http://www.hauser1899.ch/portfolio/restaurant-zum-schuetzenhaus/"">http://www.hauser1899.ch/portfolio/restaurant-zum-schuetzenhaus/</a>"