Can anyone ID these collets?

[Ultradog MN]

There's an auction coming up not far from me.
The site won't let you DL the photos so this screenshot is the best I can do.

 

[benmychree]

To my eye, they look like #2 Bardons & Oliver collets used in a #2 B&O hand screw machine (turret lathe), but without knowing the dimensions it is impossible to know for sure. I am speaking regarding the ones in the foreground, the ones behind them appear to be smaller, but of the same type.

 

[Ultradog MN]

Thank you.
Sounds like they're nothing I need.