Unknown Revolver

[Spanish Marshal]

    Gentlemen, I need your help again. 

    In my Unit,  a young lieutenant has an old revolver, that his father-in-law has given him. The weapon comes from America, a grandfather brought it when he returned to Spain in the beginning of the last century, more or less in 1890-1900.
  I don´t known if it´s a  military handgun, I´m not sure. I have been looking at it attentively and I have not found the maker's mark, alone a serial number. The caliber is perhaps 11 mm. or bigger. It isn´t a Cap & Ball Revolver   
 
   Can Anybody  recognize it?   

       Thank you very much in advance.

     Spanish Marshal                     

[Chance]

Hi, Marshal
Came up with a pistol with an almost identical grip to yours but otherwise not too similar. It may be a 10.9mm centre fire made by Lagieze (or Lagreze) from Paris. Could not find anything about the guy.

See The Illustrated Encyclopedia of Handguns by A.B. Zhuk, page 69

Chance

[Grapeshot]

Looks like an early pinfire revolver.  Good luck on this one.