🔎 UNIDENTIFIED Three Unknown artifacts - help!

[OhioTrevor]

I found these three mystery items near a very old catholic church, now a retirement home. No idea what any of them are. Anyone have a clue?

(1) This item is made of thin brass and appears to have been intended to attach with a small screw to something? Bicycle reflector (minus the reflector portion) perhaps?

(2) This item appears much older, is about the size of a wristwatch case and has what appear to be some hallmarks.

Front:

Back:

(3) This appears to be a hubcap or one side of a canteen or maybe a bowl or plate? Thin brass. Gun shot hole in the middle?

 

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[Ekim14]

I believe number two really is the back to an old wristwatch.

 

[Gare]

Maybe the top might part of a lamp shade or lamp >>> Still nice going

 

[Tony in SC]

Not knowing the exact size, I think No.2 is a from a ladies pendant watch?

 

[UnderMiner]

#1 held some type of glass, so maybe part of a lantern of sorts.

#2 is the back of a watch or pendant. The 800 stamp on it is the Continental European silver mark for 80% silver.

#3 idk.

 

[CRUSADER]

No.2 looks like the back of an old fob watch.

 

[Nathan6309]

#3 looks to be one half to the brass storage for kerosene on a table lantern.