Just picked up this Ukulele. It seems to have traveled the world on the USS Midway from 58 to 61. Seems like an older Uku to me. any thoughts? numbers 100 and 9552 are on the inside. No maker marks or stickers. the binding is small parallelograms of different colored wood. I added new Martin strings and it plays well but needs the action brought down. a newer nut was added at some time.