The Guardian (which used to be the Manchester Guardian, at least when I was at school) has its 1928 style guide online as a PDF file. The yellowing pages have been scanned.

Sections include Parliamentary (how to punctuate ‘Hear, hear!’ – I associate this more with The Times than The Guardian; Irish Free State parliament; word division; cricket; football; household servants (Cook general, housemaid, kitchen-maid, housemaid waitress, between-maid, house parlour-maid, nursery maid, children’s maid); and foreign and Welsh publications.