On 14 Nov 2024, at 19:35, Keith McKay
wrote: In last night's ConTeXt meeting there was a discussion on the use of vertical or slanted double primes for inches. The general consensus was that slanted should be used.
Unfortunately I wasn’t able to attend but, if it helps, here’s an example of usage taken from “Newnes Complete Engineer”, data sheet no. 2 “British Standard Engineering Drawing Office Practice (Part 1)”. https://flic.kr/p/2qujfCu The book seems to have been published in regular editions since at least 1935. My copy of the data sheets doesn’t have a published/printed date on it but I’m guessing printed in the 1960s. (I assume they’re undated because they were sold to apprentices or student engineers and the publishers, Newnes, didn’t want the students to realise they were paying for materials printed years earlier!) Regards, — Bruce Horrocks Hampshire, UK