For sale is an older Fender Bantam Bass Amp (60s). I have the original styrofoam speaker, but like most of them, this speaker is blown so it has been replaced. From what I have read these amps make great lead guitar tube amps. Get this piece of Fender music history.
I got this explanation on line.
Apparently, this model was made 1969 through 1971 and is the direct predecessor of Bassman10 (except 30w with a 1x15 speaker and a tube rectifier instead of ss). The stock speaker... is a Yamaha speaker. Yes, apparently, Fender had a contract with Yamaha at the time. These speakers were made of styrofoam and got blown easily, that's one of the reasons that this model was discontinued in 1971.