I've recently bought 2 WWII NCO guntos, one early war and the the other late war, from two different sellers, but both painted gold! I was tempted to strip the paint and repaint in original colors, but I recently saw two more guntos on the web (one an NCO, one an officer) painted in the same gold! My original idea was that some US GI got home with a sword and decided to "make it look better" and painted it gold, but now after seeing 4 of them, all in different hands, I'm beginning to wonder! Does anyone know about a possible practice among the WWII Japanese of painting their swords gold? Any idea who or where I could research this issue?