Distributed by G.R. Dickson Co - 932 Inca Street., Denver Colorado (circa 1973 or 1974)
WoW, thanks Chicago3rd!
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courtesy of coloradoaerial.com (circa 2008)
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And of course, both the Spire and Four Seasons, plus several significant mid-rises have been or are being built since this 2008 photo. So we will need a new aerial!