I was at the local recycling outlet the other day and glanced in the computer card bin to see something non-PCI in there so pulled it out. It's a AEH73 10Base2 (coax) network module for an Acorn Risc PC or A7000.
See: http://chrisacorns.computinghistory.org ... ccess.html
Cost me $2 to rescue. Yours for the same + $3 for the NZ Post bag.
Or if you're in CHCH and will be going to the retro computer event on Monday, I can bring it along.
First up, best dressed!