Here are some more pictures of flats. All pictures of these flats (30mm throughout) can be further enlarged to show more details.
Warsaw staff at first picture was edited in 1940 by Thiel. Drawings came from German artist H. Fritsch, engraving work was done by famous L. Frank. The Hussar officer at far right was edited 1924 by Heinrichsen originally thought for Austrian Hussars. Engraving was executed by L. Frank, too who worked nearly exclusively for Heinrichsen until 1924.