I think that is in general, I only know of it from Jane's Firearms Recognition Guides and it's association with the MP18/MP28 series. It hasn't gotten a lot of glamorous showing in war films or other popular media, if it were the choice of "Chicago Gangsters" we would like see much more historical interest and knowledge.
Many firearms fall into this category and only with the exposure of youtube, video games, and internet collections has recent awareness increased.