Trying to organise filing my jobsheets a bit better. No room for 26 files, so I was trying to divide up the alphabet into less.
The old London phone book was 4 volumes IIRC and the first was A-D (again IIRC). That must relate to the proportion of surnames that begin with each letter as each book was the same approx size.
Anyone recall what the other books were?
Seem to recall S - Z?