Libbey Single Serving Wine Carafe Decanter 4 oz Pack of 2 vintage.  Appears to be handblown and is not an exact piece but in excellent condition.

This simple yet elegant design, the Cocktail Carafe can be used to serve wine, spirits or cocktails yet versatile enough to be suitable for use as a juice or milk jug, perfect for a modern breakfast or afternoon tea.  It has a fluted style ideal for smooth pouring. 

So many uses for these mini decanters not just wine. A cute bud vase, a perfect juice carafe, easily refill your nuts or candies. Such a versatile piece!