If it is indeed from the 50,000+ Martini's found in Nepal and brought to the US around 10 years ago, it
should have importer markings. Either IMA (International Military Antiques) or ACC (Atlanta Cutlery Corp.)
Sometimes the marks are small and in an inconspicuous place---but they will be there.
Being pre-1898 antiques, I think these may not have importer marks due to them not being "firearms" in the Feds view. A great many are still being sold as 'untouched', usually coverd in brick dust and oil.
I had someone else that looked at it that said it's Martini Henry action but the trigger assembly and the thin metal bent thing is reversed as well in comparison to a Martini Henry said it might be Egyptian to I have no idea though