A really solid Martin tenor, although there's some wear to the lacquer surface there are no cracks and it appears to be original throughout (with the possible exception of the bridge pins). Dating Martin ukes from this period isn't exact as Martin went long periods without changing anything, but 1946 was the first year for Grover Champion tuners as shown here, and in 1960 they changed the 1-T to a longer neck with 14 frets clear of the body. Plush-lined chipboard case is later, probably from the 1970s/'80s.