1874 Mappin, Sheffield Pocket Knife

[kyaxley]

I've owned this knife for many.
It's in very good uncleaned condition - the only fault being that the main blade is loose.
Has an interesting device for removing jammed shotgun cartridge cases which I've not seen before.
Not sure what the hole was used for - the blade above is sprung and moves through it.
Marked with the diamond registered mark of William Singleton, Sheffield for the shape of the scales. Dates to 1874.
9 cm long

How do I include pictures?

 

[marcinek]

Here'e everything you need to know about value:

https://www.bladeforums.com/threads/new-members-please-read-this-what-is-my-knife-worth.904093/