14 ms·It would help if there was something to show the scale of the slide rule in the pictures.by Something1234 6y agoIt would help if there was something to show the scale of the slide rule in the pictures.kps 6y agoYes. It's about two feet wide. Coincidentally, there's one for sale on eBay right now.pugworthy 6y agoDo you mean the Thacher's listing? If so that one's about an 18m equivalent. It's in really nice shape with the original box. I've got the same one, but not as pretty as that one is.