This intricate device was custom-made for someone living at a latitude of 59 degrees, 55 minutes, 20 seconds. My guess would be that the recipient lived somewhere in St. Petersburg, but other locations are possible.
http://www.littlegun.be/curios%20et%20antiquites/a%20canon%20solaire%20gb.htm.
Addendum: Some additional searching has revealed that devices such as these were known as "sundial cannons" or "noon cannons." The best description/photos I've found is at this pdf by the British Sundial Society.