This is a lovely set, an Olympia 1936 cased Commemorative plaque for associates with the extremely rare document!
These plaques were given to people who worked for the Olympics in Berlin in 1936, in certain circumstances important people could be honoured with this plaque. Interstingly here is the original document to Mr. Gustav Domeier. To my knowledge no other document to these plaques is known.
The case to the plaque is present as well, although it is a bit brittle and has some age spots, it’s there though and overall however in good collectable condition. Try finding another!
As a group this whole set is extremely rare and a unique historical group.