The Doggie Diner dog heads have been an icon in San Francisco for a few decades. These heads used to be outside the Doggie Diners. Most were up on poles.
The last of the doggie heads on public display is located in San Francisco at 46th Avenue and Sloat Boulevard. It was refurbished in 2001 by the DPW.
I have seen pictures of the three of the heads Manny, Moe and Jack in parades around San Francisco. The heads are owned by John Law of LaughingSquid.com
When I saw the heads parked on Treasure Island, San Francisco the old naval base, I had to stop and take a picture. They were perfectly lighted by a street light.