Early Loetz, I have actually a Loetz piece amazing ! Hornglas...

A Loetz raised gilt enameled bottle form vase. Note the piercing at bottle top, the design front and back integrated to the red tones inside the golden hued glass, and double ground pontil on the bottom. I have never seen anything like it and still would love to know more. Obviously a major glass house product with the double ground pontil going on and the very deliberate design made over the glass. Thanks to the website http://loetz.com/identifying-loetz-glass/early-loetz