As per sibling comment: not much of a market for new ones. Would be curious about someone trying to make some: use Kickstarter to gauge interest perhaps? For u

As per sibling comment: not much of a market for new ones. Would be curious about someone trying to make some: use Kickstarter to gauge interest perhaps? For used, see perhaps "Where to Buy Slide Rules?": * https://www.sliderule.ca/buy.htm https://www.sliderule.ca/buy.htm