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A serial number is a unique, identifying number or group of numbers and letters assigned to an individual piece of hardware or software. Other things have serial numbers as well, though, including banknotes and other similar documents. Sigma's made in Japan from 1970 through 1979 used a paper label to identify the model and serial number of the instrument. The model and serial numbers were usually stamped on in ink, but some are known to have been hand-penned. Find out when your Martin guitar was made using our easy to use Martin Guitar Serial Number chart. These were used on Sigma - Martins back in 1981 and 1982.

So you need to figure out the date of your Martin guitar. It's actually a lot easier than you may think. Unlike the nebulous web of varying schemes and numbering systems used by companies like Gibson over the decades, Martin has employed a single string of serial numbers for a vast majority of its guitars going all the way back to 1898. This means that just using the serial number of your Martin will give a very accurate date of when the guitar left the line.

Sigma Warranty Additional Terms and Conditions. The Extended Service Protection becomes VOID in the following cases: If the damage is caused during service performed by someone other than a Sigma Corporation of America service center or Authorized Repair Centers. If the product has had its serial number(s) removed or altered.

The Martin serial number sequence starts at 8348 which is how many guitars the firm had estimated it had produced from its inception to when they started the serial sequence at the end of the 19th century. Martin has kept meticulous records of the serial number of last guitar produced each year, so finding the year of production by serial number is as simple as finding the range it falls into the chart below.

Finding the Serial Number on Your Martin

In a vast majority of cases, the serial number on a Martin guitar can be found inside the body near the neck joint. This can be seen by looking through the soundhole on the guitar towards the front of the instrument. It can be a little dark in there, so you may need to use a flashlight (or the glow of smartphone) to read each digit. There are other instances where you may find the serial number of any extant paperwork that came with the instrument.

Here's the breakdown of Martin serial numbers covering over a century of guitar production. Just see where your serial fits in, and you'll have the year:

Last Serial Number	Year
8348	1898
8716	1899
9128	1900
9310	1901
9528	1902
9810	1903
9988	1904
10120	1905
10329	1906
10727	1907
10883	1908
11018	1909
11203	1910
11413	1911
11565	1912
11821	1913
12047	1914
12209	1915
12390	1916
12988	1917
13450	1918
14512	1919
15848	1920
16758	1921
17839	1922
19891	1923
22008	1924
24116	1925
28689	1926
34435	1927
37568	1928
40843	1929
45317	1930
49589	1931
52590	1932
55084	1933
58679	1934
61947	1935
65176	1936
68865	1937
71866	1938
74061	1939
76734	1940
80013	1941
83107	1942
86724	1943
90149	1944
93623	1945
98158	1946
103468	1947
108269	1948
112961	1949
117961	1950
122799	1951
128436	1952
134501	1953
141345	1954
147328	1955
153225	1956

Last Serial Number	Year
159061	1957
165576	1958
171047	1959
175689	1960
181297	1961
187384	1962
193327	1963
199626	1964
207030	1965
217215	1966
230095	1967
241925	1968
256003	1969
271633	1970
294270	1971
313302	1972
333873	1973
353387	1974
371828	1975
388800	1976
399625	1977
407800	1978
419900	1979
430300	1980
436474	1981
439627	1982
446101	1983
453300	1984
460575	1985
468175	1986
476216	1987
483952	1988
493279	1989
503309	1990
512487	1991
522655	1992
535223	1993
551696	1994
570434	1995
592930	1996
624799	1997
668796	1998
724077	1999
780500	2000
845644	2001
916759	2002
978706	2003
1042558	2004
1115862	2005
1197799	2006
1268091	2007
1337042	2008
1406715	2009
1473461	2010
1555767	2011
1656742	2012
1755536	2013
1857399	2014

Exceptions to the Above

There are a number of exceptions to the above. Most notably, Martin Mandolins from before 1991 use a different sequence than guitars. Additionally, the solidbody electrics like the E18 model from the '70s do not conform to the above. Numbers 900001 to 902908 were used by a short run of Sigma-made Martin models in the early '80s so don't not appear on Martin models.

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The idea behind serial numbers is to identify a specific item, much like how a fingerprint identifies a specific person. Instead of some names or numbers that specify a whole range of products, a serial number is intended to provide a unique number to one device at a time.

Hardware serial numbers are embedded in the device, while software or virtual serial numbers are sometimes applied to the user who will be using the software. In other words, a serial number used f

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