These are cool guitars in their own right with Gibson made P-13 pickups but his guitar was modified by Nels Cline (yes, that Nels Cline) who installed a Fishman acoustic bridge pickup and a second jack near the tailpiece. So you get all the cool tone of a 3.5” deep archtop with Gibson pickups and you have a separate jack for your acoustic pickup tone. Nels really explores tones both on Wilco records and with his wife Yuka on solo projects. We admire him a lot. His changes make this guitar more flexible. The Sears catalog said this model has select spruce top and back with mahogany sides, likely a misunderstanding. However Harmony of Chicago hand made instruments with hide glue construction. This model has an easy to read neck with large block and dots in white binding on the fretboard. Also has a 1 11/16” nut width, 25”5” scale and a nice medium C neck profile. Comes with a newer hard case.