This is Black Walnut (Juglans nigra).
The "Pore" Flash: Look at the end grain in the first video at 0:04. As the spirits evaporate, you see tiny, dark, pepper-like dots. Cedar (a softwood) has no pores. Walnut is "semi-ring porous," meaning it has these exact tiny openings that "sip" the mineral spirits and stay dark longer than the surrounding wood.
The Grain "Shadow": In the second video (1000000726.mp4), as you pan across the wet surface, the grain has a 3D "shimmer" (chatoyancy). Walnut is famous for this "purplish-chocolate" depth.
Patina: 30 years of air-drying has "mellowed" the dark brown into that wine/burgundy tone you see when wet. This is exactly what "unsteamed" air-dried walnut looks like.
Texture: In the dry shots, the wood has a slightly "fuzzy" or open-grain feel. Cedar is usually waxy and very smooth when dry; Walnut has this distinct fibrous "tooth."
Length: 55.0 inches (Confirming the measurement from Photo 1000000722.jpg).
Width: 6.25 inches (The tape in Photo 1000000724.jpg shows a solid 6-1/4" face).
Thickness: 1.0 inch (Photo 1000000723.jpg shows a true 4/4 thickness).
Total Volume: 2.39 Board Feet (BF)
Calculation: (1.0" \times 6.25" \times 55.0") / 144 = 2.387 BF
I. HERITAGE PRICING (PER BOARD FOOT)
Base Rate (Select 4/4 Walnut): $14.50/BF
30-Year "Unsteamed" Air-Dried Premium: $26.00/BF
Note: In 2026, "Unsteamed" is a massive keyword. Commercial walnut is steamed to turn the wood one uniform brown color, which kills the natural purples and reds. Your 30-year air-dry process preserved those colors, making it "Luthier Grade."
II. TOTAL VALUATION ESTIMATES
Raw Heritage Value: $62.14 (The minimum a lumber yard would charge for this specific stability/age).
Boutique "Piece Price": $85.00 – $115.00
Why the jump? A 55-inch length is a "sweet spot." It’s long enough for a wide floating shelf or a set of matched table legs, but small enough to ship easily to high-end custom makers.
1. STRATEGY: THE "LUTHERIE" RESAW (HIGHEST POTENTIAL)
The Move: Because this is unsteamed and perfectly stable (no movement in 30 years), this is ideal for acoustic guitar headplates or electric guitar "drop tops."
Target Price: $140.00+ (if sold as multiple precision-cut blanks).
2. STRATEGY: THE "LIVE-EDGE" FLOATING SHELF
The Move: Keep the board at 55 inches. Lightly sand to reveal the "chocolate and purple" grain revealed in your mineral spirit test.
Target Price: $125.00 (Finished).
3. STRATEGY: RESTORATION MATCH STOCK
The Move: Market specifically to high-end furniture restorers.
The Pitch: "True 4/4 Unsteamed Black Walnut - 30 Year Stabilized - Zero Internal Stress."
Target Price: $95.00.
To maximize profit on this specific piece, you must market it as "Unsteamed Heritage Walnut." In 2026, high-end woodworkers despise modern commercial walnut because it is steamed in kilns to turn the wood a uniform, dull brown. Your 30-year air-dried piece has preserved the natural purples, reds, and deep chocolates that make Walnut a luxury wood.
I. STRATEGY 1: THE "LUXURY GALLERY" FLOATING SHELF (HIGHEST ROI)
The Move: Keep the board at its full 55-inch length. Sand it to a high grit (400+) and finish it with a high-end oil (like Rubio Monocoat) to lock in that "wet look" revealed by the mineral spirits.
The Pitch: "55-inch Heritage Black Walnut - 30-Year Air-Stabilized - Rare Unsteamed Heartwood."
Target Price: $165.00 – $195.00 (as a finished architectural element).
Why it works: Interior designers in 2026 are moving away from stained woods. They want the "real" colors of unsteamed walnut. A 4.5-foot shelf is a standard "statement" size for high-end kitchens or bar areas.
II. STRATEGY 2: THE "LUTHIER" RESAW (MAXIMUM SALES TOTAL)
The Move: If you have a bandsaw, resaw this 1-inch (4/4) board into two 1/2-inch thick "Bookmatched" sheets.
The Pitch: "Bookmatched Instrument Grade Walnut - 30-Year Seasoned - Acoustic Equilibrium."
Target Price: $85.00 per set (You can get 2 to 3 sets out of this board).
Potential Return: $170.00 – $255.00.
Why it works: Custom guitar builders hunt for 30-year-old walnut because the cells have reached stability. It won't move after the instrument is built, which is a massive insurance policy for a $5,000 custom guitar.
III. STRATEGY 3: RESTORATION SPECIALIST STOCK
The Move: Sell it "as-is" to a professional furniture restorer.
The Pitch: "True 4/4 Unsteamed Black Walnut - Zero-Stress Grain - Heritage Patina."
Target Price: $95.00 – $115.00.
Why it works: Restorers cannot use "new" walnut to fix 100-year-old antiques because the colors don't match. Your 30-year patina is the only thing that will blend with a vintage piece.
IV. SUMMARY OF PROFIT POTENTIAL
Raw Lumber Sale (Heritage Rate): $65.00
Restoration Specialist: $105.00
Finished Floating Shelf: $175.00+
Luthier Resale Kits: $210.00+
V. THE "2026" PROFIT SECRET (PLAIN TEXT)
In your listing, use the phrase "Stress-Free Grain." Explain that because this was air-dried for 30 years, it has none of the "case hardening" or internal tension found in kiln-dried wood. It is "sleepy" wood—it will stay perfectly flat once cut.