Duplo Brick 2 x 6 x 2 Double Concave

#529-1 · Basic Set · 1978

Animals

1× in set

#063-2 · Basic Set · 1978

Ducks

1× in set

#532-1 · Basic Set · 1976

Pull-Along Ducks

1× in set

#1040-3 · Duplo · 1976

Universal Building Set

6× in set

#521-8 · Basic Set · 1975

All Bricks in All Colors

4× in set 4 colors

#520-17 · Basic Set · 1975

Bricks, Half Bricks, Two Trolleys

2× in set 2 colors

#519-8 · Basic Set · 1975

Bricks, Half Bricks, Arches, Trolley

3× in set 3 colors

#517-2 · Basic Set · 1975

Bricks, Half Bricks and Arches

3× in set 2 colors

#077-1 · Basic Set · 1975

Pre-School Set

2× in set 2 colors

#515-2 · Basic Set · 1973

Building Set

6× in set 3 colors

#514-1 · Duplo · 1972

Pre-School Building Set

5× in set 3 colors