Vintage Rare Delft Blue 30 Year Commerative Royal Dutch Airlines Herman Jansen Brandy Decanter Jug Delfts Schoonhoven Holland. Pretty Delfts Blauw hand painted bottle shows a Windmill on front with florals, the KLM winged logo, 1919-1949 Royal Dutch Airlines. Original cork stopper is intact. Bottom is marked: Herman Jansen Distillers Since 1777. Schiedam - Schoonhoven HJ logo.