On my CMC wheels its got a Suntour front hub and a shimano coaster in the rear, the rear has three little indented bands in it. Its a single speed. You used to be able to get NOS ones on ebay. Its the same as what is on the bike at the Hollywood Museum.
You can also have a New Departure model D on a CMC rim, I think I have seen it both ways. In some case I thing they just used the ND arm as the brake arm and kept whatever hub can with the wheels.
Make sure to double check the spoke/hole count if your are buying a hub on ebay, sometimes it is not listed. You most likely are getting 36 hole if you got the correct rims. The used to be a seller on there that would sell you the spokes for a good price also.