I will have to scan the card later.

A quick google search indicates the powercache was an 030. Unless there was a 040 version. Maybe it's a Turbo 040? There are some labels of numbers on the back side, I am sure those tell what it is.

Wish I still had my LC III, I could use it in one of them, sans top case. It might work in my LC 520 I have...

if not, I could resell it...

-digital