The question came up at breakfast if there was ever a Braille slide rule. A search of the Internet indicates apparently so. Here is a link to one, the so-called K&E Braille slide rule: http://www.mccoys-kecatalogs.com/K&ECollection/Brail4081-3/Brail4081-3.htm ... Phil VE3HST Looking for the perfect gift? Give the gift of Flickr! http://www.flickr.com/gift/