Gibson, "Style O", acoustic guitar, 1921, USA.
Serial number 68154, body in spruce and birch, neck in mahogany, fingerboard in rosewood. The Tail Piece is marked "Patented July 19, 1910". Length 99, width 42, height 8 cm. Hard case included.
Age-related wear, marks, scratches, chips. Not fully examined. Lacks strap lock. Likely a later mounted bridge, probably not original.
The Gibson Style O was manufactured between 1902 - 1923. In 1921, this model was introduced with a "truss rod." Since this one lacks a truss rod, it may have been made in early 1921 or late 1920.