Many of the Black Widow Basses were made by Semie Mosley of Mosrite, USA in the late 1960's and early 70's. They were available in single and two pickup models with varying pickup styles over the years.
Acoustic stopped making them in 1974 and the originals are quite rare now. We made a tribute of the 6-string version last year and it turned out to be a huge success. We've had many requests to do the bass version, so here it is!