This keyboard from 1978 is truly a rare find. Key feel is smooth and build quality is extreme. Its base is made of solid steel and there are no cost cutting measures to be found. They don't built keyboards like this any more. Key-caps are the thickest double shot hunks I've ever seen on a keyboard. Own this piece of computer history now before it sells!
Switch info here: https://deskthority.net/wiki/Micro_Switch_SW_Series
Space bar and 3 other keys need repair. Sold as is.