Principles of Surveying Lecture 5.1 (Inverted staff example )

[@porteaisi686]

3:25 special point❤

[@alphabets3391]

Lied my way into a job now trying to work out how to do sewer runs start tomorrow

[@doofsdoofs]

How's the job going a year later?

[@wallywhyte9280]

Thank you, sir.