Another set of peep sights to Identify

[sandwarrior]

So, I just won this on GB. It has no name that I can find on it, but it appears to be quality made. The knurling on the knobs is well done if it is three different coarsenesses. Each of the knobs has a positive click when it turns. Not a chincy click, but those like good scope knobs.

I can include different angles if someone wants. Here is the GB auction that I won it on:
https://www.gunbroker.com/item/731348466

 

[Mike_in_FL]

Looks like some kind of Lyman. Maybe missing the aperture.

 

[sandwarrior]

Looks like some kind of Lyman. Maybe missing the aperture.

Yeah, the aperture is missing. So is the clamp screw. I forgot to mention (my phone took the pics, but I have to edit on this computer) that the crossbar is a stout one piece.

 

[buffalowinter]

Can't see your sight too clearly, is it this...Mosin M28-76 rifle. Attaching block for rifle not shown.
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[sandwarrior]

Buffalo,

My pics just seemed to muddy the waters. Were you able to get a better look by going to the GunBroker link?

I also forgot to mention the extension from the mount is round. It has a flat cut out and the knurled retaining pin slides down alongside it to hold it out.

 

[sandwarrior]

 

[buffalowinter]

If you have a thread checkr, you can see if the threads are us or metric, that could help narrow it down

 

[pmclaine]

Early Winchester 75 had a receiver sight on a rod like that.

Win did make some sights in house or that were sourced from a contractor that was not as widely distributed.

My 75 has a Lyman rear but the front is a Winchester 105A and the inserts are not widely available.

 

[sandwarrior]

pmc,

That looks like it. Mine is missing the big elevation clamp screw, as well as the aperture, but the knurling looks the same and the rod clamp screw appears to be tapered.

I went looking for my metric thread guage, as Buffalo noted to do, but couldn't find it. Odd thing is the hole centers for clamping to a rifle are 13mm, not 5/8" as the seller had said.

What, if I may ask, is the hole spacing on your receiver clamp block, pmc?

Added, a pic of the tapered extension bar pin:

 

[mrbig]

I have seen that sight on early Brno Model 1 22LR also,,

 

[mrbig]

sorry the Model 1s were a little nicer looking after finding pics of them,,kinda same design but different,