Hagstrom Special HB901 bass. This instrument was named as such by mid seventies US Hagstrom distributor Ampeg, and was previously known as the HIIBN in Europe and F400N in the United States.
Like the equivalent six-string guitar models shown on the previous page, the Special bass was available in Black and Cherry, with matching headstock, or Sunburst with Natural headstock.
Need the value of your guitar? The Official Vintage Guitar Magazine Price Guide 2024 is out now: Amazon