Ground floor floor plan of the middle grandstand for the Vienna Krieau trot racing system competition project 'Thoroughbred' by Anton and Josef Drexler, 1910, drawn on cardboard with pencil, colored pens (blue, red), and spring drawings in black and red.

Royalty-Free Standard Commercial licenses are granted for worldwide, non-exclusive and perpetual use, unless specifically noted otherwise. All Royalty-Free transactions are final. The Royalty-Free Standard Commercial license has no limitations and covers up to 15 users.