This a lovely old Martin 00-21 which according to Martins records was built on September 28th 1927. It appears to be a two owner guitar from the history I have gathered, second owner buying it in 1947 and then passing it on to his son. It sounds amazing and plays like a dream with a lovely low action. The reason it plays so well is thanks to a professional neck set from those top guitars builders at Brook Guitars in Exeter. They also repaired a couple of small lower bout back cracks and replaced a very small piece of binding. The sound top is crack free which is very rare for a Martin of this age. The tuners, nut, and frets are original and possibly the bridge.
The specs are as follows:
This Martin 00-21 dates to 1927 and has a Adirondack Spruce top with no pickguard, plain Brazilian Rosewood back and sides, a mahogany neck with slotted peg head and bar frets, an unbound ebony ﬁngerboard and ebony bridge. Mother of Pearl slotted snowﬂake inlays are used on the ﬁngerboard, and Herringbone marquetry strips are used for the rosette and back strip.
The book and selling price of this guitar varies between £7,000 – £8,500
(Most I have seen are not in as nice condition as this one)