It is marked "Not Produced For Sale" on the base which indicates that it was a trial piece, as the does not have a handle, whereas it was eventually issued with a handle in the form of a railway signal. The figure was designed by Stanley J. Taylor and introduced in 1988. 4 inches tall and is offered for sale in very good condition with no chips or cracks.
It is fully marked on the base with the Royal Doulton stamp and the words "Not Produced For Sale". The reference number for this figure would be D6823. I have included lots of photos, please take a close look at these as they form a large part of the description.
The item "ROYAL DOULTON CHARACTER JUG THE ENGINE DRIVER NOT PRODUCED FOR SALE D6823" is in sale since Thursday, January 30, 2020. This item is in the category "Pottery, Porcelain & Glass\Porcelain/China\Royal Doulton\Figures". The seller is "forgeinspector" and is located in Bromsgrove.
This item can be shipped to United Kingdom, Antigua and barbuda, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Belize, Bermuda, Bolivia, Barbados, Brunei darussalam, Cayman islands, Dominica, Egypt, Guernsey, Gibraltar, Guadeloupe, Grenada, French guiana, Iceland, Jersey, Jordan, Cambodia, Saint kitts and nevis, Saint lucia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Montserrat, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Turks and caicos islands, Aruba, Saudi arabia, South africa, United arab emirates, Ukraine, Chile, Bahamas, Colombia, Costa rica, Dominican republic, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, El salvador, Trinidad and tobago, Uruguay.