Focusing on the Scientific testing of Sanders portrait, explain the Ink about the The label.
Ink The analytical laboratory McCrone Associates Inc. in Chicago, Illinois conducted forensic ink tests on the label and concluded the following.:
The materials used in the ink are consistent with the 17th century ink manufacturing practices
A quill pen was used
The ink is well-integrated into the paper fibres of the label, in the same manner as iron gall ink, which was used in the 17th century
No dyes, binding mediums, or other alterations suggest any recent additions or changes to the ink on the label
iron gall ink