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Old 09-22-2016, 02:05 PM   #1
Onkel Neal
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Join Date: Jan 1997
Location: Cougar Trap, Texas
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Icon1 Pappenburg gauge and cryptic markings

Ok, one thing has me stumped: after our visit to U-995, we are trying to understand what the markings are on the Pappenburg gauge, and why there are two of these gauges. Is one for the each scope? What do the marks mean? thanks!

Big images, easy to see the detail

Also,why would the spacing be so uneven? On the left gauge, there's a big difference between 5 and 6 and then 6 and 7....?
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