Actually, The Mad Hatcher in GA did the RIRxSLW cross last year for a short time. Got 3 pullets out of my September egg hatch and just this week the eggs are coming in.
Note that they have a Wyandotte rose comb and not the single comb, also black feathers:
(bird at Point of Lay)

(young birds...a couple months old)

First egg!

Note that they have a Wyandotte rose comb and not the single comb, also black feathers:
(bird at Point of Lay)
(young birds...a couple months old)
First egg!