Materials and techniques of fabrication, historical knowledge of the instrument's acoustics, its value as a cultural artifact or as a music making tool are among the factors that must be considered when restoring a musical instrument. A conflict often exists between the function of these objects as sound producers and the imperatives for strength and stability. Tonal qualities can be altered by reworking damaged metal parts, consolidation of wooden surfaces, or other conservation. Restoring an instrument to playability, however, nearly always conflicts with its preservation as a historical document. A brief discussion is presented on handling, storage and conservation considerations of metal, woodwinds, and string instruments. The need for reversibility is emphasized, as well as the use of traditional and modern synthetics. A controlled environment is required for instrument storage, as changes in relative humidity may result in structural distortions adversely affecting tuning and tonal qualities. Much can be lost to posterity through the rigors of rebuilding. Many instruments play a more important role as historical artifacts than as sound producing tools. -- AATA