Architectural drawing damaged by water and mold
The piece had been adhered to an acidic cardboard
After treatment, the drawing was removed from the cardboard backing which allowed for stain reduction and mending of the tears.
Detail of before treatment, showing mold staining, fracturing of the paper.
Detail of the after treatment, the drawing was removed from the acidic backing, the staining was reduced and the mold disinfected, the darkest staining from the mold was reduced but could not be completely removed.