Acoustic Amplifiers Guitar Manufacture
St. Louis Music, Inc.
1400 Ferguson Ave.
St. Louis, MO 63133
from the Crate Amplifiers web site
St. Louis Music chose to manufacture the amps themselves rather than outsource manufacturing overseas, and the success of the CR1 grew into a full line of Crate amplifiers for guitar, bass, and keyboards.
While visiting a Crate & Barrel store in Chicago, Gene Kornblum saw products displayed using packing crates and had the idea of making guitar amplifiers housed in wooden cabinets, resulting in Crate Amplifiers first product, the ponderosa pine encased CR1 guitar amplifier, in 1978.
More information available on the Crate Amplifiers's web site.
Even more information, discussion and comments on this listing below.