Image Item No. Description  854-1 (Inv)  Go-Kart 206 Parts, 1978 Catalog: Sets: Technic: Expert Builder  855-1 (Inv)  Mobile Crane 512 Parts, 1978 Catalog: Sets: Technic: Expert Builder  872-1 (Inv)  Two Gear Blocks (Gear Reduction Kit) 77 Parts, 1978 Catalog: Sets: Technic: Expert Builder  948-1 (Inv)  Go-Kart 206 Parts, 1978 Catalog: Sets: Technic: Expert Builder  952-1 (Inv)  Tractor 312 Parts, 1978 Catalog: Sets: Technic: Expert Builder  954-1 (Inv)  Sky Copter 362 Parts, 1978 Catalog: Sets: Technic: Expert Builder  956-1 (Inv)  Auto Chassis 602 Parts, 1978 Catalog: Sets: Technic: Expert Builder  960-1 (Inv)  Power Pack 22 Parts, 1978 Catalog: Sets: Technic: Expert Builder  961-1 (Inv)  Expert Builder/Gear Parts 78 Parts, 1978 Catalog: Sets: Technic: Expert Builder  1117-1 (Inv)  Axles and Bushes 24 Parts, 1978 Catalog: Sets: Service Packs: Technic  1175-1 (Inv)  4.5V Motor 1 Part, 1978 Catalog: Sets: Service Packs: Technic  1176-1 (Inv)  Gear Racks and Turntables 4 Parts, 1978 Catalog: Sets: Service Packs: Technic  1177-2 (Inv)  Universal Joints / Connectors 21 Parts, 1978 Catalog: Sets: Service Packs: Technic