All About Slide Rules Book (PDF)

[rprosperi]

(04-14-2015 02:59 PM)MarkMason Wrote:  Even now, when I go out I prefer shirts with a pocket and take a pen and 3x5 index cards in a 'pocket briefcase' by by Levenger.**

These Pocket Briefcases from Levenger are excellent, I carry one whenever I wear a shirt with a pocket. Good to know I'm not the only one... And you can get them with the correct initials for much less than $39 ($19?) from time to time as they frequently are on sale.