Dear Majestic:
Thank you for the prompt response and the wealth of information about this flag. I'm embarrassed that I showed the flag in an improper orientation (I should have realized that the leather corners belonged to the side of the flag, not on the top). BTW I like your profile picture. Are you a Steve McQueen fan generally, or perhaps a fan of "The Great Escape" specifically?
You might be interested in knowing how my wife and I came to acquire this flag. We arrived at a local estate sale toward the end of the first day, a sale that, according to the organizers, had drawn a crowd stretching around the residential block before the doors opened that morning. We saw no other items at the sale related to WWII or Japan, and the flag was thoughtlessly draped over a sofa in the living room, looking very out of place (and lonely). Why so many people had passed it by is a true mystery, but we are happy to be the beneficiaries. A Good Luck flag indeed!
Thank you again for the information about the flag Very kind of you.
Kobedice