This is a correct answer to the following question about Seal (emblem). Yes or no?
Answer: If the impression is made purely as a relief resulting from the greater pressure on the paper where the high parts of the matrix touch, the seal is known as a dry seal; in all other cases a liquid or liquified medium (such as ink or wax) is used, usually in another color than the paper.
Question: how were letters sealed in the 1800s
