DUCATE Double Gold (23Kt. Patent) 
Ducate Double Gold Leaf 23Kt. Patent.
Genuine Gold 23kt. Measures 3-3/8" x 3-3/8". 23kt gold is Ducate Double Gold - heavier than standard leaf by 10 or 20%. Patent is a type of leaf characterized by a thin tissue backing applied to the gold side down. This keeps te leaf from being disturbed by wind and therefore is most commonly used by artisans working outdoors.