From Gibson:

Antique Natural, Round Shoulder J-45 body shape, Gloss nitrocellulose lacquer finish, Sitka Spruce top, Traditional hand scalloped X bracing, Multi-ply top and single-ply back binding, Walnut back and sides, Advanced response shaped Mahogany neck with a 16 radius Walnut fingerboard and standard frets, 24.75 scale length, 1.72″ nut width, Grover Rotomatic tuners, With active under-saddle piezo pickup and hardshell case.