It sure look like Philippinense crossed with a cochlopetalum, though it is difficult to say which one.
It could be a Paph honey (philippinense x primulinum) though other crosses are not out of question, like Paph judge Philip (philippinense x Pinnochio) or the one you listed.
Since it came from a long time ago, it is probably Honey, which I have as well. It can be darker or even more yellow, depending on the parents and the ambient light. It should bloom for a long time, consecutively (one after another). My experience is that this primary hybrid is pretty tough, although it does not like dry conditions, getting spider mites really easily.