Texan with Parker Gun used at ALAMO

[G Snapka]

Hello All,
This is a newbie to the forum from Texas. i am new to the website and new to Parker guns. Not a collector at all. Just came across an old Parker Gun that i am trying to identify. I do NOT intend to ever fire a round. I just became intrigued researching the history of PARKER and side by sides. Again, my intent is to identify the gun initially and then see if i can locate a replacement (right-side) hammer and capscrew that is missing. i hope to display it and it be a conversation starter. It is in REALLY bad shape and difficult to locate/identify the markings. I will try to send pics when i can figure out how. Hope i am following protocol for you guys.

(And NO, it was not used at the Alamo! Thought it would be a good tagline! Bad idea?)