"August 17 and September 1, 1936. In that extra-Olympiad (non-FIDE) 208 participants, representing 21 countries, played 1680 games. The Munich unofficial Olympiad was the biggest team competition ever held."
source: en.wikipedia.org

 

"Despite the fact that the German Chess Federation had been expelled by FIDE a few years earlier due to the inclusion of racial laws in its statutes, an unofficial Olympiad was organised in Munich; as a result, many countries decided to skip the event. In contrast to the International Olympic Committee’s recognition of the Olympic Games in Berlin, FIDE opted not to acknowledge this particular event."
source: twitter.com/FIDE_chess

 

final results:

1. hungary with 110.5 points

2. poland with 108 points

3. germany with 106.5 points

 

https://www.chesshistory.com/winter/extra/municholympiad.html

 

source: chesshistory.com