This is a 1970 Ampeg Dan Armstrong ”Plexi” Lucite Bass. This model was first introduced at NAMM in 1969. The neck is true and made of Maple, while the fingerboard is made of Rosewood. The neck scale length is 30.5″. A very cool bass with some great bottom end tone and plenty of punch. This bass weighs 4,7 kilo and comes without a case. Snr: D1107A which indicates that it´s an early 1970´s bass.(The 69’ers ended with snr D1100A). Non original Grover tuners.