Greenberg's Guide to Lionel Trains O Gauge, Volume 1: 1915-1928 by Bruce C. Greenberg, Ph.D. Brinkmann Publishing LLC (2017). Seventh Edition. ISBN-13:978-0967890562. 424 pages. 8 3/4" x 11 1/4". Hard cover with no dust jacket. On just about every page are detailed color photographs on various Lionel trains. Color chart of Lionel enamel colors laid in. Color chart has a light ripple. On the book - light cover edge wear and light cover edge bumping. Otherwise, no previous owner markings. No tears, folds or creases to pages. Binding is tight with no looseness to pages. Not ex-library, not remaindered and not a facsimile reprint. For sale by Jon Wobber, bookseller since 1978. GK26a