Any ideas on what this Sight was used on?

[Dronic69]

Evening All,

Attempting to ID this small Cross-hair sight - perhaps dreaming if it was used on a weapon (MG) - more likely from a signalling lamp?

Quite a neat object anyway.

All thoughts welcome.

Thanking you
Cheers
Drew

 

[sksvlad]

Too delicate for a field weapon, one wrong move and the whole thing can't be sighted, I think. Maybe some antique medical equipment?

 

[Slick]

Maybe part of a theolodite.

 

[Mike_H]

It's the sight to align a heliograph.

M

 

[sksvlad]

works better than cell phone https://www.youtube.com/watch?v=Uf-eykGL4VM

 

[Dronic69]

Excellent - thank you

It that a military related heliograph?

Cheers
Drew

 

[LCplCombat]

WWI

https://www.iwm.org.uk/collections/item/object/30005193

[h=4]Object description[/h] Heliograph 5 inch Mk V set, including wooden tripod, brown fabric carrying strap, brown leather cover for tripod legs and sight etc, dated 1918. Made by Laing Wharton Ltd. Stores reference Y0730. Serial number 14059. Number 7303 painted on in red.


https://www.iwm.org.uk/collections/item/object/30005154

[h=3]description[/h] [h=4]Object description[/h] British Army Heliograph 5-inch Mk V Duplex mirror. Stores reference YA0740
[h=4]Physical description[/h] The Heliograph was invented by Sir H C Mace (1840-1926). It was successfully used during the 1878-1880 Afghan War and thereafter adopted by the British Army and used widely in India.
[h=4]History note[/h] The Heliograph is a signalling instrument that reflects the sun's rays by means of a mirror or mirrors. A finger key actuates the signalling mirror. The Mark 5 was used by the British Army in India, North Africa, Arabia and sub-Saharan Africa. It could signal a distance of up to 70 miles under normal atmospheric conditions and with a clear line of sight
[h=4]Inscription[/h] Cat.No. ZA 11010