size 1 eggs?

[Eway]

I'm reading a list of protein-rich foods. One of them is "3 eggs, size 1".
I don't think in my country sizes of an egg are catagorized as 1, 2, 3, etc.
Can anybody tell me how big is "size 1"?

[MikeNewYork]

I'm reading a list of protein-rich foods. One of them is "3 eggs, size 1".
I don't think in my country sizes of an egg are catagorized as 1, 2, 3, etc.
Can anybody tell me how big is "size 1"?

I have no idea. They aren't sized that way in the US either. I see medium, large, and jumbo. I don't know what they do with small ones.

[Tdol]

If it's BrE, they're big eggs: UK Eggs - cooking with eggs - egg sizes, recipe advice, egg quality, beis facts and figures