I got this two years ago from members sales at a local OS show; tagged Brassavola nodosa 4N 'Cozette'. When I posted it in bloom last year, it was pointed out to me that the leaves and blooms looked to be B grandiflora, which was in the past classified as a variety of nodosa - so, seems right to me
2 spikes, 5 large (5"), wonderfully (nocturnally) fragranced blooms. The tallest growth is a total of 9".