Here is a booklet (6" x 4 3/4") that was distributed as an advertising give away back in the early 1900s. Be sure to see the other ones I have listed...all the same size with similar advertising...feature articles are different. This one is all about puzzles so if you like or collect puzzles, this is a must have! Ads are health related...some still in existence today and others no longer on the market. This little book has some water type marks along bottom edge of the cover as shown in 1st photo. Still very neat booklet!