Beat the heat at the Oklahoma History Center Museum Store's Summer Sale! The sale will be held on Friday, July 10, and Saturday, July 11, from 10 a.m. to 5 p.m. both days. Save on our great selection of Made in Oklahoma products and other items that celebrate the history and culture of our great state! Members always receive a discount of 15 percent on Museum Store purchases, but will receive an additional 10 percent off regularly priced items during…