Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
Spencer, Browning and Co
The company for the production of marine instruments (compasses and others) was founded in 1766. In 1846, the company was dissolved and the individual partners began to do business independently.
other devices for measuring angle
The manufacturer's name on the device
- SPENCER, BROWNING & Co, LONDON
