Thanks, UG. Cort Serial Numbers - Cort serial numbers are denoted with a C prefix followed by either 7 or 8 digits. I'm not sure what year the changeover occurred but using the formula it will be Epiphone. (Ver. 3.5) The Epiphone serial number decoder currently supports 12 serial number formats from 25 factories. Vintage numbers from 1932 to 1970 are supported. Serial numbers from 70' and 80's era Epiphone guitars made in Japan are not supported. The reason for this is that there is no reliable documentation from this time period. Another very knowledgeable connaisseur of vintage horns (Paul Ayick aka bulos) posted that to get the year of manufacture of a Martin trumpet, you divide the serial number by 4000 and add 1906. A large bore Committee is usually marked "3" next to the serial # on the valve casing ("L" on later models). See your order even if you are not a registered user. Enter the order number and the billing address ZIP code. Order number. Order Email. Billing ZIP code. Check status. Login-Show controller of the Martin Guitars website. See the explanation for serial number 20070311301 below: 2007 0311301 First four digits indicate the year - 2007. 2007 03 11301 5th & 6th digits indicate the two-digit month - 03 (March) 200703 11 301 7th & 8th digits indicate the day - 11 (the 11th) 20070311 3 01 9th digit is a series code number - 0 for 300 or 400 Series, 1 for 500 through First, you can tell which era your guitar was crafted in by merely looking at the logo. If you have an older model without a serial number, this might be all the closer you’ll get to dating your Gibson. There are five iterations of the company’s logo dating all the way back to 1902. The original logo is a one-of-a-kind, unmistakable italic If the serial number has an additional D in front of the Z=DZ1, then the guitar is a US Deluxe Series Model. Serial Numbers 1000000-1099999 are guitars from the Early 2010 period. 2000+ American Deluxe Series , Corona USA The serial number can usually be found on the back of the headstock. The first two digits of the serial number will usually indicate the year that the guitar was made. Another way to check the year of your guitar is to look at the model number. The model number can usually be found on the inside of the sound hole. The goal of this database is to create the most detailed visual reference material for Martin Trumpets & Cornets from the 1930’s through till the 1960’s. This information is dedicated to the hard working men and women who created such wonderful instruments for us to play and enjoy over the decades that they were in operation. The Martin Deluxe, a horn based largely on the Committee that originated around 1950 continued in the line-up, but not the Committee. So there were no "Martin Committee" models 1964-1971. Wurlitzer serial numbers are all in the 700,000s. Wurlitzer sold Martin to Leblanc at the end of 1971. lzls.