Rare Mandolin/Ukulele - Price: 100.00 in Warren, Arizona

I have a very interesting, vintage, and rare instrument. I'm not exactly sure what it is but can be played as a mandolin or ukulele. There are no maker marks on it. It's about the scale length of a mandolin. There are no frets on it just brass markers. It has a thin body. Everything on it is handmade. It measures 22.5" long and 13" wide. The bridge floats and is in mint condition....very easy and fun to play.