“Qishan Three-Ridge Zhengben” Wine-Cup Concave-Base Wenwan Walnuts Pair | 37.0mm × 37.0mm | QSSN-CWC0E

This single-inventory listing features the exact pair of Wenwan walnuts shown in the product gallery.

Carrying the stock ID QSSN-CWC0E, this pair combines several distinctive structural traits: the Qishan form, a pronounced three-ridge structure, a classic Zhengben configuration, and an unusually defined wine-cup-shaped concave base.

Measuring 37.0mm × 37.0mm, the pair presents an exceptionally balanced near-spherical proportion. From the base view, three major ridges radiate outward from the center, forming a striking triangular structure. The recessed center develops into a deep wine-cup base, giving the underside unusually strong depth and sculptural character.

The shell texture is bold and deeply folded, with broad raised ridges separated by substantial recessed valleys. Despite the complex natural structure, the two walnuts remain closely coordinated in overall size, form, ridge arrangement, and shell tone.

With its combination of three-ridge symmetry, Zhengben structure, wine-cup base, and 37mm balanced proportions, this is a distinctly collector-oriented pair.

The pair has been pre-cleaned / base-prepped and is ready for continued brushing and hand play.

Key Details

• Stock: 1 of 1 — exact pair shown
• Variety: Qishan Three-Ridge Zhengben
• Dimensions: 37.0mm × 37.0mm
• Form: Balanced, near-spherical profile
• Structure: Natural three-ridge configuration
• Base: Deep wine-cup-shaped concave base
• Ridge Direction: Zhengben configuration
• Texture: Broad raised ridges with deep layered valleys
• Pairing: Closely coordinated in size, structure, tone, and overall character
• Condition: Unplayed, pre-cleaned / base-prepped
• Inventory: Single unique pair

The Story of the Form

The defining feature of this pair is visible immediately from the underside.

Instead of a conventional two-sided base structure, three strong natural ridges radiate outward from the center, dividing the walnut into three visually distinct sections. This creates the characteristic three-ridge form, one of the more unusual structural expressions found among collectible Wenwan walnuts.

At the center sits a noticeably recessed base. Viewed from below, the surrounding shell walls rise around this depression in a shape reminiscent of a small drinking cup—hence the collector term “wine-cup base.”

The pair also carries a Zhengben structural orientation, giving the main ridge arrangement a direct, orderly visual flow rather than an irregular twisting configuration.

At 37.0mm × 37.0mm, both walnuts are almost perfectly balanced in height and width. This compact spherical proportion makes the dramatic three-ridge base structure particularly visible while maintaining a comfortable hand size.

Natural differences remain between the two walnuts, but their overall architecture, scale, shell tone, and visual weight form a notably coherent pair.

Product Characteristics

Natural Three-Ridge Structure
Three major ridges radiate from the base center, producing a distinctive triangular architecture.

Wine-Cup Concave Base
The deeply recessed center is surrounded by raised shell walls, creating the characteristic wine-cup appearance.

Zhengben Configuration
The ridge structure follows a direct and orderly orientation, giving the pair a strong structural presence.

Balanced 37mm Proportions
At 37.0mm × 37.0mm, the pair has an unusually balanced, almost spherical overall profile.

Deep Sculptural Texture
Broad ridges, folded shell walls, and deep recesses create strong visual depth from multiple viewing angles.

Collector-Oriented Pairing
The combination of Qishan form, three-ridge construction, Zhengben structure, and a pronounced wine-cup base makes this pair especially distinctive as a natural-form collectible.

Care

During the early stage of ownership, use a dry Wenwan brush regularly, paying particular attention to the deep valleys and recessed areas around the three-ridge structure.

Avoid soaking the walnuts or applying excessive oil. Consistent dry brushing and natural hand contact are generally sufficient for gradual patina development.

Because the wine-cup base contains a relatively deep central recess, use a finer brush periodically to prevent dust from accumulating inside the base.

Keep the pair away from sudden temperature changes, strong air-conditioning, heating vents, prolonged direct sunlight, and excessively dry environments.

When not in use, store in a stable, dry location.

Specifications

• Brand: ZenWalnut
• Product: Wenwan Scholar Walnut Pair
• Variety: Qishan Three-Ridge Zhengben
• Stock ID: QSSN-CWC0E
• Dimensions: 37.0mm × 37.0mm
• Quantity: One matched pair
• Preparation: Pre-cleaned / base-prepped
• Inventory Type: Single unique inventory
• Included: Exact two walnuts photographed