The barrel is rough inside, but the 7 groove, right hand twist Henry rifling is still prominent.
Except the Afghan mark and inscription shown in the photos, there are absolutely no proof or view marks, western or oriental numbers or letters or anything else, neither on or under the barrel nor on receiver or any internal part. (For German registration purposes I had to stamp 3 tiny letters on the front of the receiver as well as “577 450” on the barrel).
To take photos of the safety arrangement I will need some time to take the lockwork and safety apart. But here is a short description: The Martini cocking lever has an integral curved tail that protudes rearward through a slit in the lock’s rear wall. This tail is visible in the detached lock photo above. On firing this tail moves up. The safety works similar to a common Greener type. The safety lever moves a round stem. With he lever to the rear the stem blocks the tail from moving up. With the safety lever to the front a cut out in the stem allows the tail to pass and the cocking lever to move.