Thanks to everyone for your quick replies. So I understand that the sword in the dark (dragon) sheath is a fake/reproduction. The middle one is a WWII sword (1943).
I couldn't find any markings on the shorter sword in the plain lighter wood sheath. It may be under the handle like it is in the middle one. If the blade on the smaller sword is made from Damascus and therefore not Japanese would it be American made? Are Wakizashi and Shirasaya names of swords?
Sorry for all the questions. I'm trying to educate myself on this type of collectible and I promise not to rest them on the floor...Judith