The Berlin Residenz-Casino: the Resi
The Resi was the nickname of a vast, luxurious dance-hall called the Residenz-Casino at the Blumenstraße 10 in Berlin, Germany.
Guest could use the Pneumatic Tube System to order, pay and receive small items from the gift store, and even sent the gifts further to other guests in the building.
The system contained about 100 stations and 2000 meters brass tube. It was built by the E. Zwietusch & Co. company from Berlin.
Read more about the pneumatic tube system at the Resi Casino at: