Rare Antique WW1 U.S. Navy Gun Sight, Mark Xl (11), U.S.N, (United States Navy) Mod 6

Dated around 1915

As used on 3" & 6" broad-side naval guns 

Solid brass, with worn original black paint finish (could be stripped and polished by the purchaser)

Serial number 4811, stamped in 2 places. 

Lens cover

Internal lens crosshairs

Good used condition, with some wear, marks and scratches. 

Working order, but the lenses are dirty, so would benefit from a good Clean. A few small screws are missing. 

I have included additional gun images in the photos, just for reference.

58cm long