Seebeck emigrated from what is now Germany to the United States at the age of 9. He soon established himself as a stamp dealer and cataloguer (as a sideline to owning a stationery and printing shop) in New York City, and published the Descriptive Price Catalogue of All Known Postage Stamps of the United States and Foreign Countries in 1876.
At nine years old, Seebeck emigrated from what is now Germany to the United States. He soon became a stamp dealer and cataloger (in addition to owning a stationery and printing shop) in New York City and published the Descriptive Price Catalogue of All Known Postage Stamps of the United States and Foreign Countries in 1876.