So, there you have it. On the Surface,, it Looks okey, but when a person that can Read the Kanji takes a deeper look at it, then it's rapidly becoming apparent that this one is . What sinks it for me Now, is the false dating of 1944 written right on it. These flags can be very dangerous for collectors. I know, that when I take a look at them, I first note what the material is made of and how it is put together, but if you are able to read the Writing on it, it's something altogether different! It's looking very likely that this is a tourist flag made to resemble the old war flags brought home by GI's that everyone knew and recognized, but is, no doubt, modern made for the post war travel souvenir gatherers.
The war flags are not all that hard to find nor are they hugely expensive unless they are something Special. If you want to pick one up, there are plenty of them out there of unquestionable authenticity. I would suggest leaving this one stay on the souvenir shop shelf where it came from.