Peggy: this article refers to...?
A specialty of ours is the repair and conservation of historic murals. One example of our mural conservation work are the two "Pioneer Life" murals by Felix Jones painted in1935. These historic large murals suffered 40 years of dusty storage and abuse because they were politically incorrect. They were oil painted on paper pressboard and measured 5 x 11 ft. We cleaned these murals with a non-residual surfactant and losses were restored.