English Mahogany and brass quadrant

A wooden quadrant probably more used on land than at see according to the double devisions from 0° to 90° both in the same direction

Type of object:

Astrolabe en Quadrant

Time period:

Britain rules the waves & France

Place:

Probably UK

Date:

1760

Maker / Author:

n/a

Publisher / Printer:

n/a

Dimensions:

20.3 cm radius

Material:

Mahogany and brass, lead is missing

Graduation:

0° till 90° twice

Inscription:

None appart from the graduation

Provenance:

Delalande paris

References:

n/a

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Description

Wooden quadrant, on the lower side there is a brass circle graduated twice from 0 to 90°, divided every 10 degrees and subdivided into degrees. At the top a small brass support for a ring or weight is screwed on. Weight is missing. One side has two sighting pin holes