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• 2006-08-25 00:39 Primalchaos 334×500×8 (36695 bytes) PIX number 13533 Title: Smith Putnam Wind Turbine on Grandpa's Knob in Vermont, circa 1941 Caption On a hilltop in Rutland, Vermont, "Grandpa's Knob" wind generator supplied power to the local grid for several months during World War II. The Smith- P