Help to identify Manton & Co shotgun

[mchrister]

Hi,
I have owned a Manton & Co shotgun for some time now. It's a side by side 12 bore and has "Manton & co. gunmakers to HRH duke of Edinburgh K.G. London & Calcutta" on the top of the barrels.

It's serial number is 7551 and the proof marks I can identify are all London England. I am struggling to find out anything more such as date made and value etc so any help would be much appreciated.
Pictures attached.

Thanks
Mick

 

[oneounceload]

There's a 20 bore currently for sale on Guns International.com with the same inscription about Calcutta - asking price is $5500.

You might ask this also on Doublegunshop.com

http://www.doublegunshop.com/forums/ubbthreads.php

Lots of folks with a lot of double gun knowledge.

Good luck!