THE MARTINI HENRY.

[kahnjar1]

Here is another silver and gold decorated Martini Henry in 577/450 cal with belt and foil cartridges. Later cartridges were drawn brass as shown in Ibrahiim's post.
If the rifles you show do not have British proof marks then it is likely that they were made in Pakistan by "backyard" makers. They are however of exceptionally good quality.
The one shown here falls into that category.