These dragons caught my eye. I believe they are wivern, two legged dragons.
It was hard to get a good photo of them. Here they are in place:
It's kind of hard to see the details so I altered this photo to make them stand out:
This commercial building was erected in 1926.
Edited on February 4, 2008:
You can spot the left side of the building on page 43 of "San Francisco's Sunset" in a photo of Kieser's Colonial Creamery dated 1946.