Can you ID these scope mounts

[PA4476]

Got a few odd ball scope mounts. Wondering if anyone recognizes what they’d fit.
No name or markings of any kind on this one

 

[PA4476]

Another one. This one says B-Square. But no parts number or anything

 

[PA4476]

Another B-Square. Looks like it replaces the rear sight on something.

 

[IMDB]

2nd one is a fn fal scope mount. 1st one might be for a sks not 100% sure. No clue on the 3rd.

 

[PA4476]

2nd one is a fn fal scope mount. 1st one might be for a sks not 100% sure. No clue on the 3rd.

I believe you are correct.

 

[cmshoot]

2nd one is a fn fal scope mount. 1st one might be for a sks not 100% sure. No clue on the 3rd.

100%. FN FAL mount

 

[cmshoot]

Last mount looks like it replaces the rear sight on something.