I was lucky enough to score on an older original WMP11 Pci card a few weeks ago on one of my salvage excursions.
In my haste to remove the antenna coaxial jumper to the mini pci card from the mother card, I accidentally tore the very fine antenna copper trace loose from the mini pci pcb. Dang, it's the smallest trace I've ever seen!
On the backside of the mini card between the two rubber spacers attached the mini card has an SST Flash chip and also a paper label with MW250-IF-NT printed on it. It's on the right side of the card(contacts pointed down).
Eventually I MAY get lucky in the future and find a WMP55AG.
I've found quite a few different brands of access points and pcmcia cards the last few months. The Apple "UFO" contains the Orrinco (sp) silver. Most of the access points contain Pcmcia cards with either soldered on antenna coax or MMCX connectors. Removing the antennas from there protective plastic covers reveal they are coaxial dipoles.
Most I believe are customer returns that the customer gave up trying to configure them. (Operator error!).
The store just tosses some of them. Lucky is me...