Piton identification Thanks

Thanks

Ashby Robertson (username "ACR" on Mountain Project if you want to DM him, his profile pic is a set of crossed axes) runs the a blog called Vertical Archeology and would be a great resource!

https://verticalarchaeology.com/category/hardware/ 

Couple old ring pitons, both probably Swiss made (as noted in lower one). Get the first one wet. Sometimes that helps any marks show up in bright light.

Ice piton? Or just a simple malleable long blade rock piton? 

Bb Cc wrote:

Could be, question the regular hash marks on all 4 edges. 

Aha, I hadn't noticed that.

The top one looks like an old US Army angle.