The Alphabet of Monograms, by Henry Lillie. The only time I've ever seen this book, is in my dreams. It was first published with this ornate gold stamped cover by Day & Son of London in 1865, and has a title page which is equally exquisite. The book contained 26 numbered plates of engraved monograms, and a fold-out index table of lettering combinations with cooresponding page numbers. The word monogram originally signified several interwoven letters blended together into a pleasing design. Lillie designed this book to satisfy the work of the engraver, the embroiderer, and the carver.
::Cover design from State Library of Massachusetts Flickrstream. Interior pages via Live Auction and the Graphic Design Project.