Handwritten, from George Sack, February 3, 1926, thanks for the likeness of Charles M. Russell and the pen and ink sketch, expecting "War Dancers". Folded as one would fold a card.
Sack, George. From George Sack to "Friends". TU2009.39.1916.1-3. Charles M. Russell Research Collection (Britzman). February 3, 1926. Tulsa: Gilcrease Museum, https://collections.gilcrease.org/object/tu20093919161-3 (08/17/2016).
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