Symbol 0986 from ISO 7000 - Title/Meaning: Compensation Function/description: To indicate a reference to compensation.
Additional information: 
Symbol used to identify the function of compensation - namely, the appropriate offsetting of all the machine data values by fixed amounts to allow for tool size differences.
Own work using: iso.org/obp/graphics/grs/862ea941-e4a6-413e-ad6f-973e304e0e9d 200.png
Vectorization:  Mrmw