That is a lovely Phaius. I recently purchased on on the way home from St. Louis--stopped by a grower to pick up some stuff for the orchid society and fell in love with a plant. I wanted one that was a monster--probably a 10" pot, but since it wouldn't fit in the car, I settled for one in a 4" pot. I'm sure it will be a monster soon enough.

Yours has lovely flowers! Very nicely neglected.