Image | Item No. | Description |
| 1500-1 (Inv) | Oval Bricks 2 Parts, 1988 Catalog: Sets: DUPLO: Basic Set |
| 1530-1 (Inv) | Space 2 for 1 Bonus Offer 2 Sets, 1988 Catalog: Sets: Value Packs: Space |
| 1544-1 (Inv) | Medium Bucket 53 Parts, 2 Minifigures, 1988 Catalog: Sets: DUPLO: Basic Set |
| 1622-1 (Inv) | Pre-School Bucket 104 Parts, 7 Minifigures, 1988 Catalog: Sets: DUPLO: Basic Set |
| 1623-1 (Inv) | Small Bucket 43 Parts, 1988 Catalog: Sets: DUPLO: Basic Set |
| 2626-1 (Inv) | Car and Boat Vacation Trailer 4 Parts, 1 Minifigure, 1988 Catalog: Sets: DUPLO: DUPLO, Town: Harbor |
| 9056-1 (Inv) | Extra Duplo Bricks 94 Parts, 1988 Catalog: Sets: Educational & Dacta: DUPLO: Basic Set |