Need Help to ID these 2 Items I picked up this weekend

[OldYooper]

All I know is they have something to do with measuring?

Thanks For Looking. OldYooper.

 

[WileyWilly]

Hand held sight level, used for rough leveling

 

[OldYooper]

Thank You for looking, OldYooper.

 

[Walkin Horse]

Cut a pole a little shorter than eye height. Rest your hand on stick for steadiness and sight through the eyepiece. They are great for sighting rough elevations for drainage projects.

 

[Kaarde]

My dad and his dad were both land surveyors. Dad always had one of these in his collection of "tools of the trade".