This is a lot of 5 vintage advertising cook booklets. "Knox Gelatine" are vintage advertising cook booklets from Charles Knox Gelatine in Johnstown, New York. Published in 1936, it measures 4 1/4" x 6 1/4" and has 55 pages of recipes. "Be Fit Not Fat" was published in 1939 and has a Scottie dog cover with 22 pages. Overall condition is excellent. The 1916 Fleischmann's Yeast is a 4 3/4" c 6 3/4" 46 page booklet of recipes and photos (light foxing on back cover) and the Magic Yeast booklet is circa 1910 from Northwestern Yeast in Chicago. It measures 3 1/2" x 6" in excellent condition. Last is the "Pastry Wrinkles" booklet from 1912 by Armour. It measures 3 1/4" x 5 1/4" and is in excellent condition. All 5 booklets for one price.