The "Industrial Directory and Shippers' Guide 1920-21 New York Central Lines" is a hardcover book published by the New York Central Lines at Grand Central Station in 1920. This guide is a valuable resource for those interested in engineering, technology, transportation, industry, trains, and historic topics. Written in English, it provides a comprehensive look at the New York Central Lines' operations and services during that time period, making it a must-have for transportation enthusiasts and historians alike.