Leitz internal measuring device instructions manual. Available to purchase for immediate download. Below is an extract from the manual converted to text for a quick impression on the content. Leitz internal measuring device instructions manualInternal Measuring DeviceCONTENTS 1. Assembly 2 2. Functional description and operation 3 3. Measuring techniques 5 4. Computing the pitch diameter of internal threads 7 5. Vertical Measuring Attachment 10 6. Technical data . 11 References (1) BERNDT. G. "Die Gewinde". Springer Verlag 1925 (2) BmNDT. 6. "Die Anlagekorrekturen". Zeitschrift lnstrurnentenkunde 60 (1940) (3) WOLF. F. "mien und Messen von Gewinden”. Hanser Verlag 1952