HumphreyHumphrey amplifiers logo Humphrey Amplifiers – valve amps for acoustic guitars. Chanhassen, MN , USA

Started manufacture ” 2009, Chanhassen, MN, USA.
How can someone tell the date of manufacture for Humphrey Amplifiers?
Serial # inside cabinet (or on bottom) – some dated, others not – call with # and I can tell you.
#SN are hand-written and signed with permanent marker.

Premier Guitar article July 2013

[Source and images: Gerry Humphrey, Humphrey Amplifiers, email 17/8/2013]