Topographic theodolite, Pietro Merli, Milan - Brass, Steel - around 1890

Description
Topographic theodolite, Pietro Merli, Milan - Brass, Steel - around 1890
Italy

A 1890 theodolite by Pietro Merli, a rather unknown maker of topographic instruments from Milan.

The theodolite is regarded as the top among topographic and geodesic sensing tools because it allows to define the position of a sighting point both horizontally and vertically thanks to its azimuthal and zenithal circles which are graduated through the full 360 degrees and sub-degrees, thus defining the exact location of the pointing telescope. In addition to this there is also a high precision compass, of fundamental importance in surveying unexplored territories and mines.


Dimensions of the instrument: Height 23 cm, maximum width 15 cm.

Lot details
Object
Pietro Merli, Milan, Topographic theodolite
Material
Brass, Steel
Estimated Period
around 1890
Country of Origin
Italy
Condition
Good condition - used with small signs of aging & blemishes
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