What year is Mesa Boogie amp?

The Chronological History of MESA/Boogie AmplifiersModelDatesSerial Number RangeMark IICMay 1983 - Jan. 1984Heads, 1x12 & 1x15 models: 11001-*12399Coliseum 300: K337-K422Mark IIC+Jan. 1984 - Mar. 1985*12400 - 14999M180April 1982 - Jan. 1986M-001 - M-275106 more rows•9 May 2021

Where is the serial number on a Mesa Boogie?

On almost all post-1988 guitar combo and head amps, the serial number decal will be on the underside of the amplifier chassis near the edge of the back panel, usually on one side or the other (not in the middle). Most of the time, the serial number is also close to the AC in jack.