A 1861 pen and pencil drawing by Carl von Hasenauer showing the ice pit of Villa Amrongen, Altmünster, Traunsee, with floor plan, recovery, and cross-section, including construction lines and spring shading in gray, red, and black, red lavated.

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.