That is MOST CERTAINLY a WHITE egg!!!
Wow...Looks like there was a Leghorn in the woodpile...
Just to be a pain, these are the white egg layers:
Ancona
Blue Andalusian
Campine
Catalana
Crevecoeur
Dorking
Hamburg
Holland
Houdan
La Fleche
Lakenvelder
Lamona
Leghorn
Minorca
Modern Game
Old English Game
Polish
Redcap
Sicilian Buttercup
Silkie
Sultan
Sumatra
WFB Spanish
Yokohama
But as in everything else, there is always an exception to the rule.
Obelisk lays Pink Eggs
Slifer laid light Yellow
Penny lays a light Tan.