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Dietzgen was pretty much a high end manufacturer of drafting instruments.

The two "Starz" items look like single acting air cylinders. Do they have a threaded port in the back end? If my guess is right, the rods will extend further out when you send in compressed air, and will retract (internal spring) when pressure is released.
 
There is a Allen head screw in the Back end. No other openings.
I can push the rod in with considerable force, then it will slowly come back out on its own.
 
Looks like you did good.

You do know that the picture is of a drill & a reamer right?
 
LOL yeah I know. I was just still excited when I found them in the bottom of a box.
 
If anyone knows what these are and what they are for let me know. They were still in tubes, but no label.
Click to expand...
Looks like miniature shock absorbers used to control end travel of a pneumatic slide arrangement.

Parker, SMC, and ACE make some like that too.
 
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Christmas came early. :)

How did you find out about the auction?
 
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