Lengthy storage with non-archival means left these works on parchment with stains and creases. Cleaning was delicately carried out with both wet and dry treatments, before rounds of chemistry baths de-acidified the parchments, neutralizing the acids as well as lifting the stains. Some in-paint and repairs of tears was necessary. New archival 8-ply mat in American Marin mahogany frames with UV-filtering glass rounded out the restoration.