ROYAL OAK, Mich. – In 1972, Tony Smith’s Gracehoper was installed on the North Lawn of the Detroit Institute of Arts (DIA). After years of natural wear and tear from the elements, the Gracehoper was due for a refresh. It got its first conservation treatment in 1985 and then received an assessment in 2012. That … Continue reading Sterling Oil and Others Help DIA Conservatory Maintain Gracehoper on North Lawn at DIA