The Adventures of Tom Sawyer by Samuel L. Clemens Antique Book

I can’t find a copyright date. There is a Preface that says Hartford, 1876 below it. It is published by The World Syndicate Publishing Co. It has the very first page torn out as seen in the picture. Binding is still good. Pages are yellowing, cover and binding is stained and fraying. Back cover has water damage staining.