Formwork grain stays visible — every board mark on the Egg's shell is a record of how it was built, left unhidden.
Walls run 280mm at minimum, so the noon sun cuts hard edges instead of washing the facade flat.
Bush-hammered surfaces darken unevenly across forty years — the building ages into the gray it was cast for.
Arabic and Latin signage are cast into the same form, sized to read at sixty meters from the fairground axis.