I'm pretty sure that's a Mosrite, probably a Ventures model. The "German carve" on the body is a giveaway. Far from inexpensive, in the 60's they were almost twice as much as Fenders. Vintage Mosrites are pretty rare, basses more so than guitars. I've got a sunburst that I've had for decades, the last Mosrite bass I saw for sale was a white one for $2400 about a year ago.
Short scale, extremely fast thin neck.
They were generally associated with country and gospel music and then were popular with the California surf sound.
Cobain played a vintage Mosrite regularly, but overall I'd say that it doesn't exactly fit "The Stooges" style.