4 old Centuri Model Rocket Catalogs. The 1967 is in good shape with a couple of light scratches and shows a little wear but for it's age is OK. The 71D is in good to very good shape with a little wear showing. The 721 is in similar shape to the 71D. The 1980 9801P) shows the most wear but is very good inside and the wear is on the covers.Thanks and please visit my other auctions for some extremely rare old model rocket catalogs from Hardan Manufacturing and Amrocs as well as other rocketry items.