
This book is a reference guide for ship brokers and traders, providing a set of telegraph codes to be used in communication between ships and their agents onshore. It is a fascinating look into the communication technology of the early 20th century and a valuable resource...



This book is a reference guide for ship brokers and traders, providing a set of telegraph codes to be used in communication between ships and their agents onshore. It is a fascinating look into the communication technology of the early 20th century and a valuable resource...