The Crate CR-1D is a 1x12 Solid-State Guitar Amp manufactured by St. Louis Music in the late 1970s to Early 1980s.

"Legend has it that Gene Kornblum was in a Crate & Barrel store and was inspired to build a guitar amp by the wooden crates that held the retail chain’s products. In 1978, the Crate CR-1 (the very same model you own) was introduced. And it was indeed housed in a wooden crate similar to a military footlocker.

The 20-watt CR-1 fit the definition of an entry level/practice amp to a T. Utilizing ponderosa pine for the cabinet, it featured a solid-state chassis, a single 12" speaker, dual inputs, and gain, bass, treble, and master volume controls. The CR-1 was instantly popular, and several variations soon followed including the** CR-1D Deluxe with a distortion channel and footswitch**, the CR-1R Reverb, and the CR-1RD Deluxe Reverb that featured both distortion and reverb. Larger 60-watt models with more controls and features called the CR-II and CR-65 series were also available, as well as some higher-end models with oak cabinets. And by 1980, there was a Crate amp for everyone—including bassists!"

Premier Guitar: "Trash or Treasure: Crate CR-1"