This is the cutest little teacup, emphasis on little. The set sit just over 2" tall.
I enjoy using my tiny vintage teacups. They are perfect for serving punch at little girl's tea parties, or as an elegant desk accessory to hold paper clips. My favorite use for demitasse cups is to hang them as ornaments on my pink Christmas tree.
Though it looks as if it's never been used, my search has lead me to believe this vintage cup is from the Art Deco era. If this little set is your cup of tea and you've thought of another charming use for it, it's available in my vintage Etsy shop, LivingOldSchool.