Iron stuff

[snaps]

Hi everybody, got a few I'm unsure on. Did the buckle go into leather somehow? The piece on left has remnants of threads, round one I got no clue. Thanks for looking Snaps

 

[relic nut]

Round object looks like the handle for some type of shut off valve. Maybe a water valve.

 

[Tony in SC]

The round item looks like the inside burr for a hand grinder. The nut with the lever on it would be the adjuster "fine/coarse" for the same grinder.

 

[snaps]

Thanks for replies, Relic nut and Tony, seems like it could either one, Thanks! Any ideas on the buckle?