After an extensive web search I found the following information about this mural.
The mural entitled WORLD SOURCES OF FOOD was built in 1959
by John Garth and is located at
Marina Safeway Store, 15 Marina Blvd. between Buchanan and Laguna
This large four-panel mural mounted on the outside of the grocery store tells the story of how food is transported from around the world from farmers, fishermen, and animals, in a colorful montage-style design. The pixelated image pulls together to an almost photographic effect when viewed from a distance. The mural contains over 150,000 pieces of vitreous glass and tile from Italy and Japan. Mr. Garth worked on the mural over the span of one year.