Magnus
I am inclined to say that the plant shown is the same as one shown by "Pheli" on another thread
It has been available in Thailand as Den."tanyii " although Pheli obtained it in Taiwan as something else. Peter O'Byrne wrote an article ( Orchid Society of Sth East Asia )saying that it is Den.bracteosum going on to say that it was within the variations of bracteosum. I have seen about 20 to 30 plants of this in flower ( side by side ) some looked exactly like bracteosum whilst others had a slight variation & looked similar to the one shown.Yours looks like a small plant - same size of mine when I first got it.