- Folded Square Alphabet A
- Folded Square Alphabet E
- Folded Square Alphabet H
- Folded Square Alphabet I
- Folded Square Alphabet N
- Folded Square Alphabet P
- Folded Square Alphabet V
- Folded Square Alphabet W
- Folded Square Alphabet Z
- Folded Square Numerical 1
- Folded Square Numerical 2
- Folded Square Numerical 8
- Folded Square Numerical 4
- Folded Square Numerical 5
- Folded Square Numerical 7
- Alphabet G and Falling Squares
- Alphabet I and Falling Squares
- Alphabet N and Falling Squares
- Alphabet S and Falling Squares
- Alphabet A and Falling Squares
- Alphabet F and Falling Squares
- Alphabet Plane I
- Alphabet Plane Y
- Stainless Steel Donut No. 2
- Steel Painting, Black Square No. 2
- Steel Painting, Black Square No. 4
- Steel Painting, Black Square No. 5
- Steel Painting, Black Square No. 7
- Steel Painting, L and Two Squares No. 3
- Steel Painting, L and Two Squares No. 4