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94ALL ABOUT SLIDE RULESClark McCoy’s Keuffel & Esser Slide Rule SiteExtensive K&E catalog archives and thorough K&E information. Detailedspreadsheet listing of all known K&E models, over 600 of them! The place togo for K&E information. Many photos of slide rules.www.mccoys-kecatalogs.comGreg’s OzmanorBest source for free download slide rule manuals -- 53 of them. Manyphotos of Greg Scott’s collection. Great resource.http://sliderule.ozmanor.comEric’s Slide Rule SiteGreat variety of both general and specific slide rule information by EricMarcotte. Many photos of his collection. Very interesting site.http://www.sliderule.ca/index.shtmlSlide Rule Trading Co.Paul Ross has on his website the Complete Hemmi Catalog, the mostcomprehensive archive on Hemmi slide rules. See “Dealers” listing below foradditional information on this excellent website.http://www.srtco.usSlide Rule OrganizationsThe Oughtred SocietyInterested in Slide Rules? Join The Oughtred Society. See above.http://www.oughtred.orgThe International Slide Rule GroupOnline discussion group hosted by Yahoo. Over 1600 members worldwideexchange slide rule information by Email. Average of about 15 messages per day.Members may opt to receive individual Email messages, or a once daily digest ofmessages, or no messages (they can read messages on the Group’s website).Open membership. Messages are moderated. This is “the” slide rule discussionsite.http://www.groups.yahoo.com/group/slideruleThe Slide Rule Trading Group“Sister” group for members of The International Slide Rule Group above.For posting messages about slide rules for sale, for trade or wanted. 575members.http://www.groups.yahoo.com/group/sliderule-trade