Nick,

Just another thought, the 1933 NEC was only 304 pages long.
There were articels and sections in the book. Article 1 was definitions.

If anyone is interested, I will go through the book and list the articles and sections.

The 1962 book looks more like the modern code book that we are use to. with sec. 250 is grounding and 310 is wire conductors, etc.