Two magnificent white draft horses strain at their harness, hauling a bright red wagon laden with freshly harvested hop vines through the towering green rows of a California hop yard — an almost painterly agricultural tableau that captures a way of farming life long since mechanized out of existence. Issued as card number 1951 in the Southern Pacific Railroad's celebrated "Road of a Thousand Wonders" promotional series, this unused pre-linen gem was part of an ambitious marketing campaign by the SP to entice settlers, tourists, and investors to California and the Pacific Northwest by showcasing the region's agricultural abundance. Hops were a major California crop of the era, feeding the booming pre-Prohibition brewing industry, and the vivid hand-tinted color work — published by Edward H. Mitchell of San Francisco — renders the scene with a lush, almost idealized beauty. The back is entirely unused, clean and bright, with the Edward H. Mitchell imprint and the standard pre-divided-back postal instructions intact.