Crazy egg

[Todd the chicken guy]

This is one strange egg what would cause this??

 

[EggSighted4Life]

That is crazy.

Check out this article, it has some good clues...
https://www.backyardchickens.com/articles/common-egg-quality-problems.65923/

I would call yours corrugated.

Hope this helps.

 

[WindingRoad]

This is one strange egg what would cause this??

Is the shell soft?

 

[Todd the chicken guy]

Is the shell soft?

No it’s just like the other eggs good and hard

 

[WindingRoad]

No it’s just like the other eggs good and hard

HMMMM I was gonna throw out some Ca++ but guess I'll hold on to it. IDK

 

[eleanorham]

Looks like a throw back from the dinosaur age to me Here’s a crazy one we got last fall. Could you tell if it came from a new or old hen? Sometimes the eggs can be funky depending on the age of the hen or their diet. I’ve come across a few similar to yours but the shell was always soft and always from a new layer.