@Herby (was: They had a full sized billboard here locally)
There was another in Burlingame, near SFO, and another just south of San Rafael on Strawberry Flat. As of 1982ish, the mechanics of all three wound up at Alan Steel & Supply in Redwood City. Only one of the actual signs, though ... The toddler, bikini & dawg were porcelain on steel, the sign itself was 1-inch marine-grade plywood with nice enamel paint. The 4X8 foot sheets no longer had their supporting framework.
I'm still kicking myself for not purchasing them for the asking price of $1500 for the lot. Probably worth over $150,000 today. It was probably sold as scrap before 1990.