Kriegsmarine Blackboard Compass

A very large instrument manufactured by Dennert & Pape of Hamburg-Altona. The compass also carries a waffenampt property mark, an M and code 1V/1. Constructed from hardwood (possibly beach) with metal fittings and adjustment clamp with a scale from zero to 90 degrees. The bottom left leg of the compass carries a spike and the right arm a locking mechanism for a chalk to be attached. We would assume the instrument would have been used blackboard use either at H.Q. for training purposes in the classroom or possibly for a crew briefing prior to an operation. This is the first example we have seen and would represent an unusual addition to the specialist Kriegsmarine, Nautical or instrument collection. Please also check out the complementary Protractor which we purchased from the same source and which was are listing today. Measures 20.5" (52 cm)