For sale we have this Kalamazoo-built archtop from Gibson. The factory order code number inside the body starts with a Z, which corresponds to 1952.  Based on appearance, this instrument likely was in an attic or some other non-environmental controlled area for a time. There is substantial finish degradation with lots of checking and flaking. 

The one-piece mahogany neck shows no sign of ever having a headstock break. The 1-ply fingerboard binding is well attached with side position markers intact. There is a chip out of the corner of the nut next to the low E. The neck measures 1.68" wide at the nut, and 2.08" wide at fret 12. The pearloid trapezoidal FB inlays are intact and attached, showing some shrinkage and slight edge-rise. The Brazilian rosewood FB and what look to be the original frets show minimal wear, and the guitar plays well up and down the neck. The 3-on-a-side Kluson Deluxe strap tuners are likely replacements based on appearance.  

The solid spruce top has a number of luthier-repaired cracks. The largest crack was splined and cleated, the others are glued and cleated. The body binding is showing shrinkage and some gaps. The pickguard, Brazilian RW bridge, and trapeze tailpiece are period correct and most likely the originals. 

This instrument came to us without a case, but we carry Crossrock and Gator/Levys if you need one at a competitive price.