Antique Tremoloa Zither W/ Thumbpick and slide

Description

Antique Tremoloa Zither W/ Thumbpick and slide
strum the 4 chords and play a melody with the slide bar. Still working.
I reglued and clamped the upper end where the tuners are and the lower ends where the pin block is. In those places, the wood no longer lines up exactly.  You can see that in the pictures, but I believe it is now solid.
26" X 10"
There are labels but they're hard to read. Other examples of this instrument say they were made in Jersey City New Jersey.