You might find the following corner descriptions on a plat drawing:

• B.R.L. – Building restriction line.
•  FD – Found
•  IPF – Iron pipe found
• IRF – Iron rod found
• L.O.D. – Limit of Disturbance. The area to be cleared, graded, etc.
• NPP – Nail in power pole
•  NTCFP – Nail on top of corner fence post
• NTFP – Nail on top of fence post
• PK – Point Known
• PK nail – A surveyor\’s nail that marks a survey point. See also hub and tack.
• SR – Steel rebar
•  SRS – Steel rod set (rebar or other steel)
• WC – Witness corner