Friday mystery (9 photos)

This device is used the inhabitants of Paris in the XX century.
Try to understand and answer the question: "what use this thing?»



 
This exact midday.
At noon the sun's rays fall on the lens and set fire to the fuse guns.
It occurred shot that heard all around and realized that it was time for a break.

















Source: smilingpockets.com

Tags

See also

New and interesting