MS 2372 Garrick Mallery Collection on Sign Language and Pictography / Series 3: Materials on Pictographs and Petroglyphs / 3.4: Correspondence, drawings, and photographs filed by artifact or Winter Count
MS 2372 Garrick Mallery Collection on Sign Language and Pictography / Series 3: Materials on Pictographs and Petroglyphs / 3.4: Correspondence, drawings, and photographs filed by artifact or Winter Count / Cloud Shield and American Horse Winter Counts