Here is a link to mine on another forum asking for help with the year and ID…
https://i.imgur.com/FNM585N.jpg
I did have numbers matching…it’s the number “396”. The only way someone could try and ID the year was the fore end release which is pictured there for the 1873 model.
Mine has a 1873’ patented Deeley forend fastener. Look like yours does as well.
Just gotta give them a little bit of love. I found this old picture from a few years ago after I restored the wood.