Very rare--very beautiful! A 1920's Lyon and Healy curly Hawaiian Koa ukulele. As far as we can tell this would be called a model 3K Tenor (we originally listed this as a 5K). A stamp on the back center seam strip indentifies it as Lyon and Healy, Chcago while a stamp on the back of the headstock says Washburn. Unique size: while this tends to be classified as a Tenor it has a 15-3/4" scale--shorter than tenor but longer than concert. It is in beautiful condition! The curly koa is a gorgeous deep, coffee dark tan with chocolate streaks. The sound is as pleasing as we have heard in a ukulele. All original parts, including a handsome case. Structurally excellent, all braces in great shape, tuners work well, the neck is true. There are two, tight, hairline cracks on the back, which have been sealed, and hard to see except under certain light (see pictures). There is also a slight surface crack running down the ebony fretboard (see picture). The family we are selling this for tells us that this ukulele has been in their possession for at least 50 years (and perhaps far longer). It has been well cared for and rarely played. This is a rare ukulele and we have done our best to describe (and photograph) it accurately. If you have ANY questions, we encourage you to ask!