Info about this #4 MkI Sniper rifle.

[jmoore]

Four clicks per revolution elevation adjustments on the rear sight?

she said, he brought it back from the war

You might as well forget that pat of the story. The markings near the muzzle, etc. make that hugely unlikely...

The scope adjusting tool doesn't go with that scope, but it is a nice addition to the early tin. (Might be the first trials rifle tin I've seen, BTW.)