Unknown Found In Woodworking Estate Box

[Recalculating]

These four of the same aluminum items were found in an unmarked box with working tools like a Stanley No. 59 doweling jig.

Can any one identify them for me?

Thanks.

 

[spasm3]

Looks like part of some sort of picture frame jig. Not everything is there. Perhaps something similar to this. Not sure but its my best guess.

 

[Donald]

I would say a metal rod goes through the hole and the bolt tightens against the metal rod. Any metal rods in the box?

 

[pkunk]

they look like clamp blocks for a old Veritas shelf pin drilling jig.

 

[BrocLuno]

Yes, some sort of rod stop ...

 

[Recalculating]

There are no other attachments found that would clearly define these 4 items. The nature of the woodworking estate box lends credence to the help given that they belong to some sort of rod stop for a pin drilling jig.

Thanks for the help.