Producer / Estate: Azienda Agricola Antoniolo
Wine: Osso San Grato (single-vineyard cru)
Appellation: Gattinara DOCG � Piedmont, Italy
Vintage: 2006
Grape Variety: 100% Nebbiolo (locally �Spanna�) 
Soil / Vineyard: Osso San Grato cru � 5 hectares, volcanic/morainic soils, slopes ca. 500 m above sea level, historic vines (often many decades old)
Production (typical annual): ~400 cases across all vineyards; for single-vineyard Osso San Grato only a subset.
Vinification: Traditional long maceration, indigenous yeasts, cement vats; aging in large Slavonian or French oak casks for 24�36 months (depending on vintage), followed by bottle aging before release.
Alcohol by Volume: ~14.0%
Quality Classification: DOCG (top Italian quality tier) since 1990. Gattinara wines are considered among the northern-Alps Nebbiolo masterpieces often winner of critical acclaim and capable of long cellaring.
 Reputation & Critical Acclaim
The 2006 Osso San Grato is widely regarded as �a first-class effort from start to finish� elegant, silky, with "endless layers of fruit, gorgeous inner perfume and impeccable finish." 
Rated 95 pts by critic Antonio Galloni (Vinous / Wine Advocate) who described it as �a new reference-point wine for Gattinara� that is fabulous.� 
Over time, collectors and sommeliers note it evolves beautifully: red cherry, plum, truffle, earth, leather, and mineral notes, while retaining fine structure and balance even after decades.
The vineyard (Osso San Grato) is considered one of the cru benchmarks of Gattinara high altitude, volcanic soils, old vines, and consistent quality define its status. 
?? Tasting Profile (Expected at 18+ Years Post-Vintage)
Appearance: Garnet with subtle brick/russet hues (as Nebbiolo ages)
Nose:
Red and dark cherries, plum, wild bramble berries
Aromatic florals: rose petals, violets
Earthy minerals: graphite/slate, forest floor, wet stone
Subtle leather, dried herbs, underbrush, balsamic depth
Palate:
Elegant but complex: bright acidity characteristic of high-altitude Nebbiolo
Red fruit (cherry, sour cherry, raspberry), dark fruit nuances (plum)
Savoury & earthy notes: tobacco leaf, mushrooms, forest floor, mineral salinity
Fine but firm tannins structured, long-lasting, with a silky mouthfeel
Fine spice and warmth pleasant underbrush, dried herb no over-ripeness
Finish: Long, lingering mineral, slightly smoky, with red-fruit and floral undertones; savoury aftertaste, with elegance and freshness rather than heaviness
Cellaring Potential (if stored well): Drinkable now or over next 5�10 years. Many earlier drinkers find 2006-bottles still evolving, though some note a slight suggestion of oxidation with irresponsible storage.