The first ISSUED license plate in California was RED PORCELAIN in 1914. Before that, one would get them from Auto Clubs and other places...but they were not uniform in design. 1915 was YELLOW Porcelain and 1916-1919 was WHITE Porcelain...pretty sure it's a Willys Overland, about 1912 Model 59T1914 RPPC Postcard~"MAN & His AUTOMOBILE" First ISSUED CALIFORNIA License PLATE~