Joe Quigg balsa board from the mid-50's...with an egg nose, swallow tail, and a small, high aspect ratio fin.
Wayne Lynch transition era egg outline, with a severely pulled-in nose.
A collection of Skip Frye eggs from over the years.
In effect, the egg nose is a conventional pulled-in nose with the end rounded off. But, it's more than a cosmetic design element...it has a real purpose. Like the squash nose outline, the egg nose allows a board to roll up more easily on its rail.