Double Rexes

I have a breeder that is a black hairless called Cher (don't ask :P ). She is a wonderful little mommy who usually has to share feeding duties with a black self that I breed also (because usually hairless don't produce milk well). Usually she pops out black selfs or black berks, which I use as feeders, but with this past litter, she popped out these guys. All four have the curled whiskers and very tight, small, curly hairs. Two are black selfs, but the other two are black hoods. Could these be double rexes? Just curious what everyone thinks.

http://img203.imageshack.us/img203/7967/hairless001.jpg

http://img190.imageshack.us/img190/5377/hairless009.jpg

http://img51.imageshack.us/img51/4592/hairless010.jpg

They could be . . . but you probably won't know for sure for a while. I generally find out when I open the tub to a bunch of half-hairless, mangy lookin' rats. A good double-rex black dumbo has got to be one of the ugliest creatures on this good green earth - I love 'em!

~Bruce

Could be Rex, Double Rex or Nude.
All will be known around 5-6 weeks when their fur starts falls out or doesn't.