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The Ruby Theater is a small movie theater located in Chelan, Washington. Built in 1914, it was named after Ruby Potter, the step-daughter of its manager, Frank Potter. The original owners were Herbert R. Kingman and Morrison M. Kingman. Original seating capacity was 225 on the main level and 125 in the balcony. The theater was equipped as a cinema and as a vaudeville house. With the exception of 1972-1974, the Ruby has been showing movies for over ninety years, and is one of the oldest movie theaters in Washington.