Image Item No. Description  1-7 (Inv)  Basic Set 107 Parts, 1973 Catalog: Sets: Universal Building Set: Basic Set  2-7 (Inv)  Basic Set 139 Parts, 1973 Catalog: Sets: Universal Building Set: Basic Set  2-12  Basic Set - Canadian Version 1973 Catalog: Sets: Universal Building Set: Basic Set  3-4 (Inv)  Basic Set 190 Parts, 1973 Catalog: Sets: Universal Building Set: Basic Set  4-3 (Inv)  Basic Set 234 Parts, 1973 Catalog: Sets: Universal Building Set: Basic Set  5-3 (Inv)  Basic Set 330 Parts, 1973 Catalog: Sets: Universal Building Set: Basic Set  6-3 (Inv)  Basic Set 338 Parts, 1973 Catalog: Sets: Universal Building Set: Basic Set  7-3 (Inv)  Basic Set 412 Parts, 1973 Catalog: Sets: Universal Building Set: Basic Set  8-3 (Inv)  Basic Set 678 Parts, 2 Gear, 1973 Catalog: Sets: Universal Building Set: Basic Set  88-2  Small Basic Set 1973 Catalog: Sets: Samsonite: Universal Building Set: Basic Set  010-2 (Inv)  Pre-School Set 18 Parts, 1973 Catalog: Sets: DUPLO: Basic Set  020-2 (Inv)  Building Set 25 Parts, 1973 Catalog: Sets: DUPLO: Basic Set  030-2 (Inv)  Building Set 29 Parts, 1973 Catalog: Sets: DUPLO: Basic Set  105-2 (Inv)  Building Set 150 Parts, 1973 Catalog: Sets: Universal Building Set: Basic Set  115-1 (Inv)  Building Set 190 Parts, 1973 Catalog: Sets: Universal Building Set: Basic Set  135-1 (Inv)  Building Set 338 Parts, 1973 Catalog: Sets: Universal Building Set: Basic Set  507-2  Duplo Kindergarten Set 1973 Catalog: Sets: Educational & Dacta: DUPLO: Basic Set  508-2  Duplo Kindergarten Set 1973 Catalog: Sets: Educational & Dacta: DUPLO: Basic Set  515-2 (Inv)  Building Set 31 Parts, 1973 Catalog: Sets: DUPLO: Basic Set