Vintage Royal Doulton Toby Jug Character Mug The Mikado. It is the first edition from 1958 #D6501 in the large size at 7H. This item is in Excellent Vintage Pre-Owned condition with no chips, cracks, crazing or repairs. It is hallmarked on the bottom with all the information. Royal Doulton is made in England. The Mikado is a character from the Gilbert and Sullivan Operetta of the same name. This item comes in a Royal Doulton Toby Jug box. Not the original box. The box is in fair condition, but is still rigid and the right size.