Mid-60s Gibson TB-250 Conversion
Has a very nice matching mahogany conversion neck with a rosewood board and Reno-style FE inlay, chrome plated hardware, 20-hole flathead tone ring, dual co-rods (nickel plated), Presto tailpiece (non-original), one-piece flange, 'Gibson' marked planetary tuners, old Remo head. The 'Mastertone' label is obviously a copy, as these banjos didn't come with labels from the factory.
The only issue I see is the flange is bent near the neck notch (on the treble side). There are two tiny cracks there. I've tried to show this in the pics.
The neck measures 1.19" at the nut and is very comfortable. The original full thickness rim measures .600" at the bottom, so no tone ring overhang inside.
The case is a Gibson and is from the 70s - 80s time period. It has some tape on the top edge, but is very sturdy and all hardware works as it should.
All in all, this is a fine old banjo with great tone and play-ability. With the rising value of vintage Gibson banjos, this one is very reasonably priced.