Origami study
ARCH267637
between 1986 and 1989
Origami study
ARCH267638
between 1986 and 1989
Origami study
ARCH267639
between 1986 and 1989
ARCH267640
1999
ARCH267641
2001
ARCH267642
1999
ARCH267643
2000
Expanding wheel mechanism
ARCH267644
1998
ARCH267645
1997
ARCH267646
1998