Casa Maestri 1965 Gold Flask 750ml refers to a collector-style flask bottling from the Casa Maestri 1965 series, but there is no direct evidence of a specific product labeled "Gold Flask" with this exact spirit in the latest results. Most Casa Maestri 1965 flasks on the market are filled with either Canadian whisky, straight bourbon whiskey, tequila, or vodka, presented in sleek flask-shaped bottles—commonly available in 750ml size.