Ok.. here is the difference between rough and smooth sable newborn collie pups...

Here is Paris (and Kelsey actually) at a couple days old...


Smooth sables have very light colored heads, with darker rings under their eyes.....

One more of Paris... at about 1 wk old


Now here is a rough sable... this pups is about 1 1/2 wks old..so by now would be obvious he's a rough anyway.. but roughs have darker heads and masks