Vintage Photo Chevrolet Dealer Advertising Panel Van

Vintage Photo Chevrolet Dealer Advertising Panel Van...   Black and white photo of a couple men standing next to Chevrolet delivery truck...    Side of the truck reads, "Calegari Bakery - Union St. - GArfield 3543"...    Photo is slightly faded, sepia toned...   Photo measures about  8"  x  10"  with an additional 1" piece on the right side of photo...

I believe this is an advertising photo for the Bay Area California Chevrolet Dealer...