Vintage Gibson TB-3 Mastertone Tenor Banjo 1920'sThis 1920's Gibson TB 3 Mastertone is a pre war gem. Our inclination tells us this is most likely a late 20's banjo, but because Gibson did not use sequential serial numbers at this time, we are not positive. This instrument includes the specs you would expect to see in a late 20's TB 3 including the two piece tube and plate flange, 40 hole arch top tone ring, Grover Presto tailpiece, Grover pancake tuners, mahogany rim neck and resonator, and