The "Imperial Seal" (Yu Xi) Symmetrical Three-Edge Pair | Collector Grade | 38.0mm x 39.0mm | YSSN-1201E

This listing is for the exact pair shown in the high-definition photos. Stock ID YSSN-1201E is a phenomenally rare, meticulously matched Collector Grade pair of "Imperial Seal" (Yu Xi) walnuts featuring the highly coveted symmetrical three-edge mutation. Ready for immediate shipping.

• Stock: 1 of 1 (Single Inventory)
• Variety: Imperial Seal (Yu Xi) - Symmetrical Three-Edge Mutation
• Classification: Collector Grade / Museum Rarity
• Dimensions: 38.0mm (Width) x 39.0mm (Depth)

[About the Symmetrical Three-Edge "Imperial Seal" Variety]

This pair is a breathtaking collision of majestic posture and flawless geometric anomaly. The variety is named "Imperial Seal" (Yu Xi) because its broad, commanding shoulders and stable base perfectly resemble the heavy jade seals used by ancient royalty.

What catapults this pair into the absolute highest echelon of collecting is its mutation. A standard walnut features two edges. This pair features a natural "Three-Edge" structure. More importantly, it meets the rigorous collector standard of perfect symmetry—meaning the three ridges divide the shell into three perfectly equal, 120-degree sections. Finding a structural anomaly in nature is rare; finding one with flawless mathematical symmetry and matching it into a pair is a true museum-grade miracle.

[Characteristics of YSSN-1201E]

• Flawless Triangular Leverage: The perfectly spaced three ridges provide completely unique mechanical handling. Instead of a simple rolling motion, this symmetrical 3-edge geometry acts as a natural lock against the fingers, delivering a highly rhythmic, distinct, and deeply engaging tactile feedback.
• Majestic Proportions: Measuring 38.0mm in width and a beautifully plump 39.0mm in depth. The slight extra depth gives these shells a powerful, hand-filling volume, while the broad shoulders stay true to their commanding "Imperial Seal" heritage.
• Aggressive, High-Traction Texture: The deep valleys between the three prominent ridges create an incredibly rugged topography, acting as intense natural traction that provides profound deep-tissue acupressure massage.
• Expert Aging: Given the immense value and rarity of this Collector Grade masterpiece, proper care is essential to bring out its best colors. We highly recommend resting them in a sealed bag between handling sessions for the first two weeks. This expert technique safely accelerates natural oxidation, drawing out a rich, even, and brilliant red patina far more effectively than using gloves.

[Specifications]

• Variety: Imperial Seal (Yu Xi) with Symmetrical Three-Edge Mutation
• Classification: Collector Grade (Highest Tier)
• Stock ID: YSSN-1201E
• Dimensions: 38.0mm (Width) x 39.0mm (Depth)
• Texture: Deep, muscular valleys structured around a flawless, perfectly spaced three-edge (120-degree) geometry.
• Best For: Elite connoisseurs seeking the absolute pinnacle of Wenwan rarity, featuring perfect mathematical symmetry, regal posture, and completely unique three-sided leverage.