I have a  b/w reprint of the Sears Roebuck Gas Engine Catalog. It is 37 pages. Face stapled and front and back are card stock. Really nice pics of the different engines from the 1hp to the larger 10hp ones. It covers all the stationary and portable ones. All sizes are mentioned with alot of pics and specs for each to include pumps saws feed grinders and alot of other equipment sold for the economy engine. I bought this manual that was said to be an original, but after reading it i found out in the text that it was a color catalog. my loss. someone printed it in black and white.. Darn. So i rescaned it and cleaned it all up. it was really bad. If anyone has a color copy let me know. i have one but it is hard to read. I also have the instruction manual listed as well. this catalog has so many good pics of the engines and info about the old sparta economy i think it was worth it to reproduce.  alot of specs and info on the different models. It measures 8 1/2" by 11".  a great addition to any collection.