Sentence:  The coat of arms, trademark, and "Haus-" and "Hofmarken" when used to identify property owned by a person, family, or institution; the personal device or seal employed to "sign" or notarize contracts and other legal documents; the marks of stonemasons, which indicated the identity of theproducer so that he could be paid for the pieces he fashioned; and the goldsmith's <WSD>plate mark</WSD>, which identified the maker and guaranteed the quality of the gold used — all these were ways of registering the "person" in law and commerce within the culture out of which Du:rer emerged. 
Meaning of the word marked with <WSD> tags:  A legal emblem stamped into articles made from precious metals such as gold and silver to indicate the value of the metal.