It takes a month or more from my experience for the eggs to reach normal size. She looks just like a Black Star sexlink.. I have two and she could be a sister.. I give some of the pullet eggs to a friend who uses the shells for her eggery ornaments. They are cute! My Grandsons also like the "kid sized eggs".
Have fun,
Kit

I think I figured out what the black ones are. Black Giants. You got me looking/thinking in the right direction. Thanks.

wow what a nest box set up! You have to have some happy hens!

Kitty

I'm no expert, but she looks more like a young black australorp than a black giant. very pretty bird & lovely eggs!

I think kelly is right.

I think it looks like an Australorp. They are great birds and do really well in the winter.