As I was thinking about Sheet Numbering, I starting strolling back through memory lane. I have some vague memories about sheet numbering from the 80’s. With CAD bringing a level of organization and limits to a file name in DOS, consistent numbering became more important at retrieval of the file. I wrote my own standards back in 1991. I adapted these as times and projects changed. Finally, in 2003, I drank the Kool-Aid and adopted to the National CAD Standards (NCS).