This bass came up for auction in March 2013 with an initial asking price of $1,000, and ended up selling for $1,375 in April.
"1969 AMPEG DAN ARMSTRONG "PLEXI" BASS. This is a GREAT playing bass! The neck is in great shape with no buzzes or dead spots. The electronics are in great shape and the pickup sounds AWSOME!! Just ask Bill Wyman or Geezer Butler!! Serial number D671A, this is the 171st bass produced, in the first year of production 1969. This is the very first model variation and has the rare and highly sought after Bill Lawrence designed "Stacked Humbucker". Everything is original except the pick guard and the frets. Original knobs, pots, wires, caps, resistors, pick up, tuners, truss rod cover, rosewood bridge, even all three original strap studs are there and in great shape!! You will notice that the original wood grain formica pick guard has been replaced with a professionally made clear plexi pick guard. The case is a new Ampeg re-issue and is in excelent condition too. This guitar is in EXCELENT shape and will be a great addition to any collection!"