Royal Doulton Tiny Explorers Character Jugs Set With Display Stand. Royal Doulton Character Jug, Explorers Set Columbus – red, grey, blue and tan coloration; Scott – browns; DaGama – green, grey and brown; Marco Polo – red, brown, green and grey; Dr. Livingstone – yellow, brown, and green; Cook – dark blue, yellow, white and tan. Designed by Stanley J. Taylor, issued 1997 in limited edition of 2,500. Size: 1.5? H (Tiny). The Explorers collection presents six tiny character jugs modeled after the great explorers who ushered in a new era in world history. Each Condition is “Used”.