Chinese Woodblock Print (Penn Museum)
Before Treatment:
BT, FRONT, NORMAL ILLUMINATION
After Treatment:
AT, FRONT, NORMAL ILLUMINATION
Before Treatment:
BT, BACK, NORMAL ILLUMINATION
After Treatment:
AT, BACK, NORMAL ILLUMINATION
Stain Reduction Progress:
Citrate pH 6.55
Before Treatment:
During Treatment:
Notes: Citrate was a little harsh. The treatment lightened the area around the stain too much.
DTPA pH 6.5
Before Treatment:
During Treatment:
Before Treatment:
During Treatment:
Overall
Before Treatment:
During Treatment: