“This sculpture challenges our perception of stability and weight. Two heavy lead forms are balanced in a seemingly precarious embrace, relying solely on gravity and friction to remain upright.”
A towering lead pole leans precariously against a thick lead tube in Richard Serra's "Close Pin Prop." This sculpture, created in 1969, embodies a raw confrontation with gravity and material. The pole, nearly eight feet tall, is held upright solely by the weight and friction of its interaction with the shorter, cylindrical tube. There are no welds, bolts, or hidden supports; the entire structure relies on a delicate balance, making the viewer acutely aware of the forces at play. Serra, who worked in steel mills in his youth, often explored industrial materials and their inherent properties. Here, the soft, malleable nature of lead allows for this direct, unadorned interaction, transforming a simple act of propping into a profound statement about stability, instability, and the physical world.
- Artist
- Richard Serra
- Date
- 1969
- Medium
- Lead
- Location
- Art Institute of Chicago
- Dimensions
- Pole: 250.8 × 9.5 cm (98 3/4 × 3 3/4 in.); Tube: 101.6 × 24.8 cm (40 × 9 3/4 in.)
What to Notice
Four details hide in plain sight. Here’s where to look.

The way the tall pole rests against the tube, held by friction alone.
The dull, matte texture of the lead surface.
The sheer weight implied by these solid industrial forms.
The visible marks or imperfections on the lead from its creation.
Richard Serra
1938–2024 · United StatesRichard Serra redefined sculpture, transforming industrial materials like lead and steel into monumental, site-specific works that challenge perception.
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