Photos Grandfather's pocket knives?

[Bill Lucas]

Hi, Below are two pockets knives. One is a N Schrieber & Sons and the other I don't know. Does anyone know how old might be? At least 100 years, it has to be Any idea who made the single blade knife? The hallmarks are hard to show clearly.
I can find no information. Thhttps://mail.google.com/mail/u/0/#inbox/162961e6164c34d8anks

 

[danbot]

Welcome!
You will need to use a photo hosting site like Imgur to post your photos here. And you should post them in this sub-forum: https://bladeforums.com/forums/bernard-levines-knife-collecting-identification.691/