Dating marshall cabinets by serial number

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While there are serial-like numbers during this era, no standard serial number format has been identified.

Most amps underwent cosmetic changes during the same time, so most amps can be group in a certain period of manufacture by what they look like.July 1969 - December 1983 EXAMPLE: SL/A 24523 D SL/A = Model Code 24523 = Serial Number E = Date Code This amp would have be a 100 Watt Super Lead 1972 January 1984 - October 1992 EXAMPLE: S/A T 24523 S/A = Model Code T = Date Code 24523 = Serial Number This ampwould have be a 50 Watt 1985 JCM900's The JCM900's began using a Bar Code system which consists of 9 digits which are broken down into three sections.EXAMPLE: 950322589 95 = Year 03 = Month 22589 = 5 digit serial number This amp would have been made in March 1995.October 1962-December 1964 - No recorded serialization exists and the only known information is that numbers started at 1001 and ran numerically in sequence. The serial numbers are stamped in the back panel of the chassis, with an occasional model number.Amps from this era are covered in black levant with a gray grille, feature an old block-style Marshall logo, and some chassis' are mounted offset.

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