Yes she lays brown speckled eggs, but they're dark like other marans that I have in my coop. She came from a bunch of chicks that were supposed to be Black Copper Marans
If she was supposed to be a black copper marans, she's most likely a marans mix--both marans, but two different varieties. A Black Sexlink mix isn't impossible, but is probably much less likely.
She's very pretty! Im also wondering what breeds do not have combs because she doesnt and I had a broody hen who hatched one of her chicks mixed with a wheaten maran roo and came out with a dark brown without a comb also