I had only HEARD about this...and now I found one.

Wow. I didn't know this thing had ever even been used in a "normal" computer. What a shame that the guy tore it apart.

Edit: More info! This is pretty fascinating -- and heartbreaking. What you have came from a Model D, which was the first model sold by Leading Edge (whose manufacturer was Daewoo). Now here's there interesting thing: I don't think it's generally known that there ever was a Model D that used the Wildcard 88. Even people who have the same card that you have don't seem to know where it actually came from. Here's Wikipedia talking about the model you have:

The Model D initially featured an Intel 8088 microprocessor at 4.77 MHz, although later models had a switch in the back to run at 4.77 MHz (normal) or 7.16 MHz (high). Earlier models had no turbo switch and ran only at 4.77 MHz, while a few of the later ones (seemingly very rare) were 7.16 MHz only. Three models are known: DC-2011, DC-2010E, and DC-2011E. The "E" seems to correlate with the capability of running at 7.16 MHz.

That 7.16 (actually 7.15) MHz is the native clock speed of the Wildcard 88, and it was software-switchable to 4.77 MHz, the XT standard clock speed!

Can't wait to find out if anybody actually knew what was in these Leading Edge models.