"Short-Cut" Section or Detail Designation
"Short-cut" Section or Detail Designation appears in the form of 2/40 which indicates Section or Detail No. 2 appearing on Sheet 40.
This designation should be used when space does not allow, or it is impractical or inconvenient to use the standard "Section or Detail Designation."
Particularly useful when reference is required when writing a description such as:"Extend Flashing into Wall. See 2/40."