Roy, I have an another variety of this species from South India and Sri Lanka who is sometimes sold as V. tellessala "blue" because if its blue lip. Maybe it is the one you have as well ?
If it is this one, it is a very floriferous variety !
It could be Philippe, I hope it is. The nursery I bought it from did have some where the flower was more blue apart from the lip BUT recent other plants flowered by a friend of mine, from this nursery have been less than accurate with the names. I could end up with anything.