Can anyone help me put a value on this?

[james01]

I found this in a box of my fathers things after he had passed away. I have held on to it for the past 20 years not knowing what it was. Just found out it is a sighting aid for a vickers machine gun.

On side:
1918 No 7351
A. Kershaw & Son Ltd
CLINOMETER SIGHT (MARK lll) l

On base:
CLINOMETER. VICKERS 303 GUN. Mk l

Any ideas on what it is worth would be most appreciated.
Thanks, James

 

[Hitzy]

You can use a picture hosting site like photobucket to post pictures.
Here is a sticky thread on it with a walkthrough
http://www.canadiangunnutz.com/forum/showthread.php?t=100555

 

[james01]

Thanks Hitzy!

 

[John Sukey]

Without the Vickers,not much use for it. Can't say the value as I bought mine over 20 years ago when I bought the gun.