This 1970-era Dan Armstrong bass came on the market in October 2015 with an asking price of $2,399. Besides changed tuners, it looks like a couple of the strap buttons have been changed and some work done to the truss rod nut. Pickup seems like it was painted at some point. Overall, seems like a decent player-grade bass with a non-OEM hard shell case.
"Welcome to another Atomic Music E-Bay site!"
"Up for grabs is a pre-owned Vintage late '60s Ampeg Dan Armstrong Plexi Bass. Great condition, just a few dings and scratches here and there. As happens with all these basses, the pickguard disintegrated long ago and has been replaced. The body does have some hazing and light scratches, but nothing major. Please review all of the pictures in the link below for condition! Ships with an newer Ampeg reissue case that is in excellent condition. Weighs 9.75 lbs. Brass truss rod nut has been replaced with a modern nut."
Q: Hello, could you tell me what the serial number is so I can date it? Should be printed on the bass side of the neck where it bolts into the body (look through the side of the body). Will be along the lines of DxxxA...
A: The serial number is D1188A. Thanks for asking! - atomic-bay
D1188A shows up next in November 2015 on Reverb with an asking price of $1,750 from seller Double-D-Guitars.
"A used 1970 dan armstrong plexiglass bass guitar in good condition, has changed tuners, the body has scratches and marks in places, the neck is straight and the frets are good. has flat wound strings, plays and sounds good, may have a newer or made pick guard, see all photos. Comes with a newer style ampeg case as shown in the photos."
"D1188A is the serial number, there are no cracks in the pick guard around the input jack."