DE'COPPET & DOREMUS
This Wall Street firm was headed by Edward J. De Coppet at the time these stamps were cancelled.
Mr. De Coppet was well known in New York as a patron of the arts. He organized and sponsored the Flonzaley Quartet which had become one of the finest of its kind in the United States. It played for Mr. De Coppet on the night of his death.
De Coppet and Doremus was founded by Edward De Coppet in 1891.