From high above the rooftops of San Francisco, a sweeping aerial illustration captures the full drama of the San Francisco–Oakland Bay Bridge arcing across the bay toward Treasure Island — the man-made exposition island constructed specifically for the 1939 Golden Gate International Exposition — with the rolling East Bay hills of Oakland and Berkeley stretching to the horizon beyond. This breathtaking linen-era card documents the Bay Area at a singular moment: the Bay Bridge had opened just three years earlier in 1936, Treasure Island was brand-new and humming with World's Fair excitement, and the region was reshaping itself as a modern metropolis. The reverse, published by Stanley A. Piltz Co.'s "Pictorial Wonderland Art-Tone Series," provides a detailed description boasting that the bridge was the longest in the world at 4½ miles, with a double-deck design carrying six automobile lanes above and three truck/bus lanes plus electric rail below — engineering superlatives that Californians were rightfully proud to share. This unused example is in excellent preservation with brilliant linen color.