The subject is a specific, identifiable product, seemingly a brand of bourbon whiskey. The numerical components likely denote aspects such as proof (16), and potentially vintage or historical years associated with the brand or its production (1917, 1933). The “black gold” designation implies a premium or highly valued product.
The significance potentially resides in its rarity, historical connection to significant dates (perhaps Prohibition’s repeal in 1933), or the quality and reputation the “black gold” designation suggests. Understanding the history of distilled spirits in the United States helps contextualize the appeal of a brand referencing these particular years. Collectibility and investment potential are common drivers of interest in aged and rare spirits.