Q: I have in my possession the book pictured below by Washington Irving, called “Knickerbocker’s History of New York Complete”. There is no date on the copyright page. Any information on this book will be appreciated. I am helping a friend to sell it.

A: Your book was published in 1903-1904 as part of the Petit Trianon Series.

The covers of this series changed every year or two. In 1903-1904 the Petit Trianon Series had the pedestal on the left side of the cover. This pedestal is either in blue, pink, beige or soft leather. On the right half of the cloth covers is one of 16 flowers. The beige colored covers are the most common.

See http://henryaltemus.com/series/series143.htm

The books of this series are all reprints and consequently have very little value.