45 degree prismatic astrolabe by Cooke

45 degree prismatic astrolabe by Cooke, Troughton & Simms Ltd. of London & York. No.19921. Boxed, HO 2, with stool

Details

Category:
Surveying
Object Number:
1989-518
type:
prismatic astrolabe
credit:
Admiralty Hydrographic Department

Parts

Diagram of prismatic astrolabe

Diagram of prismatic astrolabe

Diagram of prismatic astrolabe.

Object Number:
1989-518 Pt1
type:
diagram