I have 3 of those too and I have no clue either. Mine are about 12 weeks old now. I got them from Murray McMurray with their Rarest of the Rare assortment.
This is an older picture. I think about 6 weeks old.
I also have 3 of these!! (see "mystery chicks" in the raising babies board) Pine Grove told me the same thing: White Laced Red Cornish. But I'd like more info... Do you have any idea roo or hen? I can't tell at all. Are these like the cornish x's and get huge and have heart attacks and die?
Well here are some nice pics of the white laced red cornish. I had listed on my charts at home that I thought I had some of these based on the chicks as well, so I'm going with that!