Allen (?) Battery or generator tester

[WisJim]

I'm getting ready to move and so I'm going through a lot of my stuff and found this tester. Anyone know anything about it or if it is worth selling? I also have a smaller old Sun generator tester

 

[Lightning rod]

thats really cool
a quick search of the web seems to indicate that these old tests units are popular with the old car
crowd. Ebay items seem to go from $200 and up

 

[WisJim]

In that case, I need to figure out shipping and list for sale. My similar Sun unit is in better shape and has the instructions with it.