The symbol for Third Angle projection (a truncated cone inside a trapezoid) must appear on every drawing sheet title block per AS 1100.101.
I can do that. I'll assume you want a clear, structured guide summarizing and explaining AS 1100.101:1992 "Technical drawing — General principles" (key requirements, symbols, tolerancing, line types, layout, dimensioning rules, examples and common pitfalls). I'll proceed with a concise, practical guide including prescriptive examples and a one-page quick-reference checklist. AS 1100.101 1992 Technical drawing General principles.pdf