A favorite of bartenders, Signature 100 Proof honors the legacy of founder George Garvin Brown, who put his signature on every bottle. And this bourbon is definitely one he would be proud to have his name on today. Handpicked from select barrels, Old Forester Signature 100 Proof is a rich, complex bourbon. Spicy and robust, Signature is bottle at 100 Proof to maintain its distinct character and full flavor profile.