Maybe I'be called a "smart ass" but I hope you did not pay over
$50.00 for that "pile". You may better off buying one of those disasters
on a gun auction site. That rifle in the field, followed 70 years later
by M. Ghandi destroyed the decadent British Empire.

Fred

p.s. I once was a suffering owner of a 1960 Jag

While eBay has no authority to restrict shipping of firearms parts, they will suspend your account if they find you in violation of their rules. It is a PITA, but it serves to discourage some from shipping out of the country.

The gun was a gift, offered as-is. The total investment is the shipping and I made a new aquaintance in the process. I enjoy a challenge and resurrecting this into something functional is the machinist/gunsmith equivalent of doing crossword puzzles, it keeps the creative juices flowing.

Thanks for the collection of links, it will be a great help. I did have a link to the Martini Gallery. It shows several action views, and the makers marks seem to appear on either side of the frame. I was put off by the buffing on the left side. The marks on the right side are very light and were obfuscated by the surface rust. 

I am fairly certain it is a MKII artillery carbine, not a cut down rifle. There are several photos of the artillery carbine in the photo gallery that are identical to this gun. I do not like destroying collectible guns, but this one is so far gone that there is little to work with. Once the metal is cleaned up, all makers will be lost. The pipe wrench marks on the barrel shank have obliterated any marks there. The wood has been sanded and the cartouches are almost invisible. 

The same problems with making the action presentable would be present in making it into a sporting rifle, it is just too rough to warrant a lot of work or expense. I have other actions and projects in the fire that are suitable for making "good" guns from. This would make a good knockabout. That is why I am thinking about something in a smaller caliber.

That action is not a carbine action. Here is a cabine action.

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Not the bottom front of the action is rounded.

Here is the forestock of a carbine.

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There is some variations to carbine forestock furniture, but all were similar.  

There is a carbine that would resemble what you have.  The MK II carbine was  made by cutting down the Mk II rifle.  The barrel as listed in The Treatise of the British Military Martini was shortened to 1' 9.437".  The fore stock was shortend and the barrel channel opened up. Barrel bands  and fittings were moved back and then enlarged to fit the larger barrel diameter at the new location on the barrel.  The muzzle diameter was also reduced. 

The buttstock was also drilled for lower sling swivel.  If you can post a picture of the front sight  and rear sight it would help.  There were only a little over 38,000 of the MK II carbines made.

Dove tail is definitely Bubba work.  The MkII Carbine sights were soldered The muzzle reduction did on the MK II Carbine was  blended.   

Rear sight looks right.   

With lots of work the gun looks very restorable.  I am pretty sure I have a coorect front sight, I just can't find it right now.

I think that is a good plan...send me the rusty parts.