You've found the "needle in a hay stack"! This is the Large, Full Size Jug, not the Miniature Size: stands approx. Authentic Royal Doulton production, made in England. Excellent/Mint condition with no chips, cracks, scratches or crazing.
Dated 1963; Rare, Valuable Collector's Piece (see bottom photo). A Toby Jug, also sometimes known as a Fillpot (or Philpot), is a pottery jug in the form of a seated person or the head of a recognizable person, often an English king.
Typically the seated figure is a heavy-set, jovial man holding a mug of beer in one hand and a pipe of tobacco in the other and wearing 18th century attire. Jugs such as this one depicting just the head and shoulders of a figure are also referred to as Toby Jugs, but according to experts and collectors, these should strictly be referred to as "Character Jugs". The item "Royal Doulton Toby Character Jug Ard of Earing Large Size # D 6588 Dated 1963" is in sale since Wednesday, July 12, 2017.This item is in the category "Collectibles\Decorative Collectibles\Decorative Collectible Brands\Royal Doulton\Character, Toby Jugs". The seller is "hassmith" and is located in Lake Forest, Illinois. This item can be shipped to United States.