Serial number 74163 was stamped on January 15, 1940 and cleared final inspection on March 27 that year.
This guitar is in remarkable condition. Many original D-45 guitars were owned by working musicians and were often returned to Martin to be "refreshed", which usually involved refinishing.
The tuners are gold plated Grover G-111G machines. The G-111G tuners were only used between 1939 and 1941.
Style 45 features:
Back and sides: Brazilian rosewood
Top: Red spruce (Adirondack)
Purfling: Abalone (top, back and sides)
Binding: White ivoroid
Abalone "C. F. Martin" head stock veneer
Back stripe: Style 45 pattern
Other period features:
Ebony belly bridge
Steel T-bar neck reinforcement
1-11/16" neck width at nut
Tortoiseshell celluloid pick guard
Hexagonal abalone fingerboard inlays
Decal on front of headstock
No C. F. Martin stamp on back of headstock
Photos courtesy of Gruhn Guitars