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History of Science Museum

Base for Unidentified Object

Inventory Number 11142


Item type
Object
Primary inscriptions
"Latitude 51 30"
Dimensions
Height: 355mm Width: 475mm Depth: 375mm Weight: 12900g
Inventory No
11142

Description

Used for surveying?

1. A large rectangular wooden base with four large screws with Copper Alloy handles in each corner. A large circular Copper Alloy gear is screwed to the base in the centre. This Gear has an arm extending from the centre towards the teeth on the outer rim that moves via turning a Copper Alloy handle. The arm has a large Copper Alloy Y-shaped object that stands towards the end of the arm. There is a Copper Alloy circular spirit level mounted in front of two Quadrilateral shapes.