Boy I wish I knew what I was looking at. Does the aircell have to be round?I candled my mystery duck eggs and I have 11 out of 14 left. Two I left in there have veining but it's minimal while the other have good strong veining. The three I took out were clear, one has a previously unnoticed crack from being shipped and the other two were just clear. I didn't bother to crack them to see if they were fertile or not, was not to worried about it. Thanks for the mystery duckies!