Eggs in Petaluma

Egg carriage

Part of a Butter and Egg Day celebration in Petaluma where residents dressed as chickens and eggs (Circa 1920).

Photo from Petaluma Museum

Petaluma egg industry

This machine was developed by Lyman Byce and the poultry industry in Petaluma, California. It blew fine sand on the eggs by compressed air to clean the shells.
Photo by Milton A. Ayers, 1927.
From here.

About Petaluma: here and a previous post by MMP.