Hi, I came across the following advert: http://www.irjohnston.com/HP_spectrophotometer.html for a HP 8451A Spectrophotometer which includes the rare 98155A keyboard. This machine is based on the HP-85A / 85B (or both!) and the ad has some nice photos of the complete set up, including the keyboard which HP-9915A owners seem to be desperate to get their hands on. This looks like an expensive way of buying a keyboard though.... BTW the photos are dated October 2003 so this may have sold by now. Perhaps suppliers of 8451As might have a spare keyboard from a dead unit knocking around, I would not like to ask all the 100's of suppliers of surplus lab equipment though! Regards, John