developed egg?

[kcej0822]

I just received an order of hatching eggs and candled to check air sacs as I was putting them in my incubator. I came across this egg while doing so. I've done a fair bit of incubating, but I wouldn't necessarily consider myself an expert by any means. In all of my incubating, I've never seen a "fresh" egg like this.

Is it just me or does this look like a developing/developed egg? Any input/feedback would be appreciated. Thanks in advance!

 

[ChickenAndMore]

That does look like it is half way developed. I would contact the seller and tell them about the egg.