The commercial manual of Philadelphia issued under the auspices of the Maritime Exchange This book, "The commercial manual of Philadelphia issued under the auspices of the Maritime Exchange", by William of Philadelphia Ross, is a replication of a book originally published before 1886. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.