A striking chrome-era color postcard featuring Ross Allen, the famous snake expert at Silver Springs, Florida, shown in the act of 'milking' a rattlesnake — extracting its venom into a glass container. The colorphotograph was taken by H. W. Hannau and published by Natural Color Publishers of Miami Beach, Florida, capturing one of mid-century Florida's most iconic roadside attraction performers. Ross Allen was a celebrated herpetologist and showman whose reptile institute at Silver Springs drew tourists from across the country from the 1930s through the 1970s, making this a highly collectible piece of Florida tourism and natural history memorabilia. This unposted card is in good vintage condition and would appeal to collectors of Florida Americana, roadside attractions, or herpetology history.