Gibson guitar headstock script dating
(G = Gibson, K = Kalamazoo, W = Recording King (Montgomery Wards).If follows there is a third letter E, it stands for Electric.Thence 5 digits and no space between the year (5) and the serial number.(After 5 9999 came 510 000) Evidently the production was high in 1956 because "6 9999" is exceeded.Some instruments from the fifties also had been such a stamp. At serialization in the 70s a random method was used.
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Note: Custom shop guitars are not supported The Gibson Serial Number Decoder currently supports 6 formats from 4 Factories.
Gibson has used various methods of numbering from 1900, so it is not simply based on the serial number to identify the year of manufacture..
Exceptions: Some high-end models and lap steels from 1939-1940 have been added the letter A, to the prefixes D, E or F.
Factory Order numbers with a letter from 1952 to 1961.