Rhode Island Red or Barred rock?
OUCH, could be an egg inside of an egg too, inquiring minds wanna know
You need to measure your egg. Ours is usually a double egg and the size for us is anywhere between 3 to 3 1/2 inches long.
You found out this would not fit in a carton or even close. I went through this many years ago so I went to investigate these eggs on the internet.
You might even have small tiny eggs that have just egg whites in them.
The ones that laid ours is either a sex link, Gold or Silver Laced Wyandotte, and Australorps years ago.