[Copy of post on EZ-board]
Author friend has an early either 'Microsoft' or even 'MicroSoft' (!) era mouse - runs DOS, Word 5 etc. Local pro maintaining system observes:
1) Gender is backwards on the DB-9 connector! for one thing - bus mouse? too early for 'PS-2'. NO ID like a model #, of course.
2) Steel ball! - maybe mottled surface (suggests to me they bought large ball-bearing rejects before they were case-hardened ? then maybe acid etched.. whatever) Prolly ~1" dia.
3)Rounded but: more squarish than modern shapes. In normal position you see the "Microsoft" logo and two green - also square-but-rounded - buttons.
We imagine this was a rebranded Something, before M$ got up to speed with own stuff. "Pry out of my cold dead hands" kinda thing.. for its owner.
Q: Anyone recognize this museum piece? Have a spare? Know what board it talks to (ISA natch). Problem is to setup a spare machine - capable of talking to This mouse or hopefully - with a spare one too. Seems well-made. How do it work? Driver? Remember it's DOS only - no Win drivers need apply.
(Local pro lives down the street from Gary Kildall's old Digital Research HQ !! Worked for them once..)
Any even vague recollections welcomed..
Ashton
then I need - a head bolt for my Type 57SC Bugatti, and the tachometer pointer..