Hi
(1) You can get a rough idea of its age just from the FEDERAL LAW FORBIDS.... embossing. See my
Federal Law Forbids web page
(2) You may be able to more accurately date the bottle via the markings on the bottle's base. Post a photo
(3) Value - there is a good trade for full liquor bottles that are sealed and you will find a healthy market for them on ebay. However empty usually suggests the recycle bin.