Blue Book of Guitar Values: Martin History 1833-1950s

Blue Book of Guitar Values. Graded secondary. Open the original.

Not archived. Via summarising fetch: OM 'announced in the 1930 catalog'; size 000 introduced 1902. Added 2026-10-15 by llm:claude-sonnet-5-5.

What it supports

1 fact on this site cites this source, across Martin. A quoted passage is the text the fact relies on.

Fact	Years	Records	Passage
Martin OM^[1]	introduced 1929	Martin	No passage captured

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Sources

Every numbered marker on this page points here: the document, its grade and the passages relied on. An era is computed, so it cites the facts it was derived from. A fact marked “no source” has no claim attached yet.

1
Blue Book of Guitar Values: Martin History 1833-1950sgraded secondary

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