The Mesa Mark I is the original Mesa Boogie combo amp (though it wasn't called the Mark I until the Mark II came out in 1978). Mesa Mark amps evolved out a modified Fender Princeton reworked by Mesa founder Randall Smith in 1969. The amps went into regular production a couple years later, laying the groundwork for the high-powered combo amps that would become synonymous with Mesa in the '70s. Years of Production: 1971 - 1978