411 - Maestro is a Gibson brand that dates back to the 1950's. They were also made at the Kalamazoo MI factory and sold thru a separate "Music Store" outlets (not Sears, Montgomery Wards, etc., as with the cheap brands like Silvertone, Danelectro, Airline, Harmony, etc.) Maestro amps were actually pretty expensive and the bigger models, quite the competition for Fender Amps. Here's my 1958 Maestro Concert model I still use in the studio, it was comparable to a Fender "Pro" model. It has a massive Jensen 15" Alnico magnet speaker like the early 60's Fender Pro's had. In the 60's and 70's Gibson resurrected the Maestro name but for medium priced guitars, above the cheapo "Kalamazoo" models and below Gibson branded guitars. Now I guess they're probably made in Indonesia and of the same quality as Fender's Indonesian/Indian made junk.