I dug in tonight and took more pictures.

It's looking more and more like either a 2/XL or converted Lisa 1 based on date codes. 

Here's the CRT's driver board, and part number. 620-0121 matches up with what a 2\XL\Conversion would have.



1723 written on the top right of the board for some reason.



Here's the CRT, with Week 32, 1981



The next is a capacitor date code of Week 32, 1981 (again)



Here's a transistor with a date code of Week 39, 1982



Capacitor with a date code of Week 21, 1982



Here's another with Week 54, 1982 (I believe - Matsushita's numbering was a tad odd).



There's also more PTA Prototype on the other plastic pieces.