Customized Vintage Year whiskey Glass. Customized Vintage Year Birthday Rocks Glass has the year of birth and "Aged to Perfection" engraved in a keepsake birthday gift double old fashioned glass. Can be used to celebrate every birthday for years to come and makes a beautiful display. Deeply carved using our sand carving technique, each scotch, whiskey or bourbon glass is meticulously custom made to order making it the perfect gift for those seeking unique gift ideas for whiskey lovers - men and women alike. Our engraved rocks glass provides a generous 13 ounces to hold your nectar of the gods. A set of these etched whiskey glasses will be the favorite gift at any special gift giving occasion. Lead Free Crystal Rocks Glass Option: Want to upgrade your rocks glass quality? Select our Lead Free Crystal glass by Ravenscroft. Measuring 4 high, this quality crystal double old fashioned glass adds weight and style to your whiskey glass with a beautiful bubble feature in the center of the sham. We recommend hand washing your crystal bar glasses.