High-powered non-vibrato amp of 40W with a 12 in. plus a 5 in. tweeter, suggested for bass guitar.
Marks that can be entered for this maker: Transformer code.
Nothing predates 1958; components only push the date later.
Sold-price aggregates are not collected yet, so the archive gives no figure — condition, originality of the transformers and a documented recap move this model more than any list price.
Evidence: Vintage Guitar magazine