In reply to Dafydd Llywelyn:
My old logbook, kept for 30 years, from late 60s to late 90s, had these columns:
Date, E, D, C, B, A, Crag, Mountain, Area, Role, Partner/s, Comment.
E-A were narrow columns, in effect acting as margins, and to the right of A was a broader column so the route names could spill over. The letters representing broad bands of grades: E - Extreme, D - VS/HVS, C - Severe, B - up to V Diff, A - Scramble (or a notable walk, in brackets) In the Role column the following letters were entered: W = Walk, hillwalk, L = Lead, or lead crux if rest of route much easier, S = Seconded whole route, or led only easy pitches, A = Alternate leads, V = Varied leads, TR = Top rope. Comment was a one liner assessing the route, the experience and how well or badly I had done it.