The Martin 000-45S Stephen Stills Signature Edition was made in 2005 - in a production run limited to 91 instruments. Stephen Stills was a long time user and collector of Martin Guitars and already had a Martin D-45SS Signature Model (introduced in 1998).

The 000-45S Stephen Stills Signature Edition is based on the original 12-fret 000-45, uses the same select Adirondack spruce for the soundboard with 1/4" Adirondack spruce top braces forward-shifted and carefully scalloped for optimal tone. The mahogany neck is also faithful the original  000-45, measuring 1-13/16" at the nut, 25.4" scale length, modified V shape profile, square slotted headstock with the historic "C. F. Martin & Co." pressure stamped on the back, elongated diamond volute and old style pointed heel. Back and sides are made from  East Indian rosewood.

Abalone pearl is used in the Style 45 body inlays: around the edge of the top, fingerboard extension, back, sides, end piece, neck joint and rosette. The body inlays are accented with mitered black/white wood fiber lines. Vintage depth grained ivoroid binding protects the top, back and sides. The back has a Golden Era Style 45 multi-colored mosaic backstrip.

The rosewood headplate and the ebony fingerboard are bound in grained ivoroid and inset with mitered black/white wood fiber inlays. The headplate showcases "C. F. Martin" in Golden Era Style 45 block letters of abalone pearl, and Waverly Irving Sloane side mounted tuners with open gears, engraved mounting plates and ivoroid buttons. Style 45 abalone "snowflake" position marker inlays grace the fingerboard from the 1st to the 15th frets, with Stephen Stills distinctive signature inlaid in mother of pearl between the 17th and 20th frets.

In the tradition of the original 000-45, the Stephen Stills Signature Edition has an ebony pyramid bridge. The non-compensated saddle, nut, bridge and end pins all are fashioned from fossilized ivory, with the latter two topped with black pearl dot inlays. Like the originals, this guitar is not equipped with a pickguard. Adding to its traditional appearance is the medium straw hue of vintage toner on the top and the rich brown of dark mahogany stain on the neck. Both the body and neck are  finished in polished gloss lacquer.