The Objects Conservation Programme at Gordion, capital of the ancient kingdom of Phrygia, has responsibility for the preservation of objects excavated at the site since 1950. The long-tem goal of the Programme is to stabilize the collection stored in facilities in the village of Yassihöyük, Turkey and make them accessible for research long after excavation at the City of Midas has ended. The site has produced thousands of individual objects as well as massive bulk collections. Before 1988, conservation was carried out in a cookbook fashion, using Plenderleith's Conservation of antiquities and works of art . In 1988, a new conservation programme was initiated. Projects have included: conservation treatment of all newly excavated objects; renovation of the collections at the local museum, with concurrent survey and treatment of deteriorating objects; advising on environmental monitoring of the Midas Tomb chamber; and research into deterioration processes, treatment and storage techniques for use in the field. The long-term nature of this project offers a rare opportunity to review the success and failure of field techniques commonly used in the past, while currently used techniques are reviewed annually.