Puckerings has dated this piece to the 1910s.

Across the bridge is the model name "The Aide de Camp". An aide-de-camp is a French expression meaning literally "helper in the [military] camp") is a personal assistant or secretary to a person of high rank, usually a senior military, police or government officer, or to a member of a royal family or a head of state.

A beautiful pair with all the attributes we always look for in excellent working order. The case measuring 5 3/8" x 3 1/8" x 6" tall.
J.H.Steward Ltd. Opticians and instrument makers, London.
The optician, James Henry Steward, founded his business in 1852 and produced an extensive range of items for military use advertised as instruments for ‘Reconnoitring, Sketching, Night Marching, Signally, Gun Laying’.

In the middle of the 19th century the business was appointed as the optician to Her Majesty's British & Foreign Governments, the National Rifle Associations of England, India, Canada & the Colonies and the National Artillery Association.
Item: 43919
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Puckerings has dated this piece to the 1910s.
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