Brass Wax Stamps Wax sealing is an age old method of sealing letters. The wax hardens quickly to form a bond with the paper that is difficult to separate without noticable tampering. Thus verifying that your letter or document has been delivered unopened. This only verified that the letter had not been tampered with. Brass wax seal stamps were used to verify the sender by using a specific design, usually your family crest, to emboss the wax.
