Image Item No. Description  9615-1  (Instructions) for 9-Volt Motor Add-On for Simple Mechanisms Catalog: Instructions: Educational & Dacta: Technic: Supplemental  9617-1  (Instructions) for Introducing Air Power Set (Pneumatics I: Introduction to Air Power Set) Catalog: Instructions: Educational & Dacta: Technic  9618-1  (Instructions) for Structures Set Catalog: Instructions: Educational & Dacta: Technic  9630-1  (Instructions) for Nonmotorized Simple Machines Set (1997 Version) Catalog: Instructions: Educational & Dacta: Technic  9645-1  (Instructions) for Motorized Simple Machines Set (1997 Version) Catalog: Instructions: Educational & Dacta: Technic