Antique 1940's Japan Skull "Lay of the Old Mans Private Poison" Decanter Set

This set is in good condition, antique 1940's Japan skull jug & shot glasses decanter set. Hand painted, paint in best condition I have seen on a set yet. Cork needs to be replaced. Complete set with 6 cups, some minor paint loss, very minimal ( see photos ). Jug measures approx 11", cups approx 2" tall. Rare set, complete.