Anybody know what these brackets are for?

[z-bikes]

Found 4 of these in the drawer where I keep all the small bike hardware. I must have put them in there for some reason but it escapes me now. Appear to have never been used.

 

[49autocycledeluxe]

looks like NOS small bike hardware to me.

 

[z-bikes]

looks like NOS small bike hardware to me.

Should be worth a lot in that case.

 

[49autocycledeluxe]