Ampeg AEB-1 Bass 1967 BM3307

EXC with original owner's manual/papers, approximately 750 produced between 1966 and 1968, hollow body design, original Mystery pickup (bridge mounted to a thin steel plate positioned over two magnetic coils set in epoxy - this is not a piezo pickup, it was designed so that gut strings could be used), debuted at the 1966 NAMM show, OHC