The engraving, I believe, is a tribute to Maria Theresa Christina (1717-1780), the only female ruler of the Habsburg dominions and the last of the House of Habsburg. She also was the mother of Maria Antoinette. The classical portrait of a woman being held by Cupid appears to me to be Maria Theresa. The phrase (which appears to be a mix of French and German) that is on the rim of the goblet roughly translates to "This beautiful woman which is my everything I stay committed to in good and bad days...".
This gorgeous piece, stands approximately 10 ½ inches tall with the cover on. The actual goblet, which holds ¾ Cup of liquid, has a height of 7 ¼"; the diameter of the base is 3 ½" while the diameter of the cup is 2 ¾". It has an engraved circular foot with patterns of foliage and garlands going around it. The cover also has these patterns. Cupid and the portrait are between two columns and the entire center is encircled with engraving; including a compo-tier filled with fruit on the top of each side.
It is in remarkable shape. There are no chips or cracks, and there does not appear to have any repair work done. Looking at it under a black light, it is yellow, and almost looks sandy in nature.