Who’s egg?

[Adula62]

One of our other girls is laying, but I wasn’t expecting a speckled egg. The breeds I have are ISA brown, Plymouth barred rocks, white rocks, barnevelders, black Australorp, and Easter Eggers..who’s do you think this is? My ISA brown, Reba, was the first to lay and her eggs are a darker brown (photo 2).

 

[ChickenCanoe]

It could be any of those except possibly the Easter Egger or the Barnevelder.
Looks like an extra coating of calcium over the pigment.
@aart has posted an excellent article on the subject.

https://www.backyardchickens.com/se...[include_reviews]=1&c[users]=aart&o=relevance

This should help you solve the mystery.