LisaList2

There is an old post discussing a Lisa mouse prototype with SN#378. It was part of a  Lisa Proto sold on eBay in 2021

There is a similar mouse (SN#170) at the Computer History Museum in Mountain view.

Well a friend of mine recently acquired yet another one of those, with SN#372 !! I was lucky to put my hands on it and take side-by-side pics. See below

From the top, the proto (left) seems more gray that beige


And here is the bottom. Note 3 screws vs 2, and of course the non-removable ball on the proto


PCB: The encoder wheels are below the PCB in the proto


Underside of the PCB


And now some random pics

Really interesting to see side by side, thank you for sharing

Does anyone have a Rev 0.1?

Very cool, thanks for sharing.

I'd bet this is a later-stage prototype; early or non-final boards commonly have a "SK" designation, but this one is labeled just like the production model. Interesting.