This is a logo plate from a 1978 Mark I. Note that it's the early style that has no ® symbol. $95 shipped.
Here are (2) original GEQ slider knobs. They have the grey line, and are correct for Mark I/II (and III?). Very hard to find. The replacements that Boogie currently sells are different, so you have to replace all (5) if you use the new ones. $20 each shipped.
This is a set of (6) NOS knobs, as used on the early Boogies and Music Man amps. $60 shipped
Payment via Paypal friends and family shipped CONUS.
Here are (2) original GEQ slider knobs. They have the grey line, and are correct for Mark I/II (and III?). Very hard to find. The replacements that Boogie currently sells are different, so you have to replace all (5) if you use the new ones. $20 each shipped.
This is a set of (6) NOS knobs, as used on the early Boogies and Music Man amps. $60 shipped
Payment via Paypal friends and family shipped CONUS.