Be very careful pressing this. One of those insanely expensive velvet press boards would be good. Not sure if the heavily napped Turkish towel routine works well with silk velvet.
What I do know is it embosses beautifully.
Eta: I've never known a velvet to not have a nap. I just read Folkwear patterns info stating that silk velvet, technically silk /rayon velvet, definitely has a nap. I know sometimes it isn't obvious unless under certain lighting conditions. Always best to assume a nap, decide which end is up and be consistent.