This is a 1920s Concertone Banjo Uke. Concertone was a Montgomery Ward house brand name.  Montgomery Ward acquired its Concertone banjos from established banjo manufacturers including the Slingerland Mfg. Co. and Stromberg-Voisinet in Chicago in the early 1920's. 
 
This Concertone banjo Uke was likely built by Slingerland, a major drum and banjo manufacturer in the early to mid-20th century. The rosewood neck shim (original) seems to suggest and early version of this instrument as later ones used a metal wedge system to hold the neck in place. These are durable, well-built, and practical banjo-ukes. 
 
This uke needed a new skin head, and was missing the tailpiece and bridge. There was water damage on the tail end of the tone ring and minor rust on the hardware in that area. I used electrolysis to remove the rust on the tone ring hardware and replaced just a single hook (a vintage match from my parts collection). I re-glued the loose birds eye maple veneer at the water damaged section, then french polished that area to restore the finish. I replaced the damaged skin head with a new thin goatskin banjo head from Smakula Banjos and replaced the missing tailpiece with an Elderly Instruments replacement tailpiece.
 
The tuners are original and a bit more ornate than I've seen on other examples. They were in fine condition and worked perfectly so I left them as is. I assembled the instrument, and found an appropriate vintage 4 string bridge in my parts collection. I strung it up with Aquila Nylagut Uke strings. It's loud as a canon and solid as a the proverbial brick house! 

Specs are: 1 1/4" nut width, 6 7/8" head diameter, and 2 3/16" side depth. The neck has a D shape with a flat fretboard. Maple neck, ply-maple rim with birds eye maple veneer. The face dots are pearl.
 
This is a vintage banjo uke that can be played in any situation, amateur or professional, and will take solid use. Best of all, the price is at a point you can afford to pick it up and try banjo uke just for fun!
 
Comes with the original cardboard case, one hinge broken. Will be carefully packed and insured.
 
My price 185.00.