Serial number 44066 was stamped on September 23, 1930 and cleared final inspection on October 7 that year.
A small number of 1930 00-21 guitars were made with a "dark top" but this sunburst finish is so subtle is often referred to as amberburst or teaburst.
Style 21 features:
Back and sides: Brazilian rosewood
Top: Red spruce (Adirondack)
Soundhole decoration: Herringbone purfling
Other vintage features:
No pick guard
Ebony Belly bridge
"C. F. Martin & Co." stamp on back of headstock
Ebony neck reinforcement
Square fingerboard inlays
Nickel silver bar frets
Photos courtesy of Steve Swan Guitars