Nice link. I'll add one I like though I think Sumi's is better. I've now saved hers.
Egg Quality Handbook
https://thepoultrysite.com/publications/egg-quality-handbook
@thecarmiearmy I don't see anything particularly weird about those eggs. If you check out these links you can see a lot weirder. If it is consistent you may have a problem but an occasional is nothing to worry about. The hen's internal egg making factory is pretty complicated, it takes a lot to make a perfect egg. I feel we are all entitled to an occasional oops.
The reason you don't see those in the eggs you buy from the big commercial operations is that they automatically candle and inspect them so their customers don't get a surprise. They sell this defective eggs at a discount to bakeries, pet food manufacturers and such, places that open them to use them.