Looks like it might have some Den. monoliforme in it. Is the plant fairly small, and are the blooms nicely fragrant? There are several relatively new nobile-monoliforme hybrids in the market that basically resemble either miniature nobiles or rather robust monoliformes. Norman's Orchids (
ORCHIDS.COM join us for orchids timeless beauty, passion and charm) has some pretty decent pictures on their site (and no, I'm not endorsing them by saying this). I have two of them, and they're easy to grow plants--although not currently in flower. Whatever it is that you have, it's got very attractive flowers.