English: Photographs from the 1915 American Grand Prize and Vanderbilt Cup, both held at the Panama-Pacific International Exposition in San Francisco. The rules and car numbers for both races were the same, so it is unclear which event these photos were taken during.
This category has the following 2 subcategories, out of 2 total.
Media in category "1915 Panama-Pacific International Exposition auto races"
The following 15 files are in this category, out of 15 total.