Steven Stwalley of Stwallskull blog wrote to tell us about his Crumbling Paper project, where he scanned comic strips from the dawn of modern comic strip era (many comics are over 100 years old and have not been reprinted in any form since their initial publication)
The one above is the wonderful big-headed cartoon of Lulu and Leander by F.M. Howarth (full size here), published in the Chicago Examiner and American on August 19, 1906.
Links: Crumbling Project | Index of all cartoons and cartoonists scanned - Thanks Steven, what a wonderful idea!