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
http://www.wolfpackgame.com/img/research/pappen1.jpg
http://www.wolfpackgame.com/img/research/pappen2.jpg
http://www.wolfpackgame.com/img/research/pappen3.jpg
http://www.wolfpackgame.com/img/research/pappen4.jpg
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....?