Interesting spotting scope

[Gurn]

I'm not sure what to make of this scope but it was such a good deal I couldn't pass it up. I know its not the right size as the ones used with the Enfield sniper set but it looks good with mine so it will do for now. Its a 4 draw about 12" and fully extended about 42" not including the shade extended. 2 1/4 inch objective lens.
No markings other than "XXIV" hand marked on all parts.
It needed work when I got it. One tube was cross threaded and one was frozen up and wouldn't extend. After fixing those and gently cleaning all the lenses its crystal clear.Missing the front lens cap and part the cap slipped onto.
One couscous thing, the sliding eye piece cover is black glass. When I look through it at a bright bulb I can just barely make out light. I wonder what the purpose of that is, to study the sun?
The leather is thin and cracking and it looks like the tubes were silver plated at one time. It fits in the leather case perfectly but it didn't come with it.
Anyone have any ideas on its age or what its intended use was? Any ideas to maker? Were unmarked scopes common back in the day?

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[browningautorifle]

I just worked on one almost identical and it should be marked. Understand the markings are so fine and light they may have all but disappeared. My understanding is they would be for sea duty, that is on board ship. This would probably be just a normal glass for daily use. The sun shade should be a bit more like sunglasses, but it could have clouded with age...can't say as I can't see it close up. The tinning of the tubes could be to avoid tarnish. I haven't see that on any I've worked on...your front shade should also be covered in leather...very fine thin leather. It's virtually identical to the one I had here.

[Gurn]

If there were markings they have long vanished. As I disassembled it I went over every inch with a magnifying glass in bright light and only found those Roman numerals. Would you suggests I recover it with new thin leather? I would love to see pics of yours.

[browningautorifle]

I don't own the one I was working on. There's a relic and curio shop I do piece work for and did almost the same thing to his as you did to yours. I don't know who would do the re-cover for you, there will be people here that DO know though...