Annie and Clarabel (motorised)
Troublesome Truck with covered crates (Incorrectly labelled as "Ballast" on packaging)
Troublesome Truck with coal
Mail Van and BR 20 Ton Brake Van
Sodor Fuel and Milk Tankers
Breakdown Train (with Knapford Station)
Henry (Note that he is shown in his old shape)
Thomas, Edward, Henry, Gordon and James (with thanks for knap for sharing this with us)
Henry, Gordon, James, Percy and Annie (with thanks for knap for sharing this with us)
Toby, Duck, Trevor, Harold, Bertie and Terence (with thanks for knap for sharing this with us)
Toby second prototype (with thanks for knap for sharing this with us)
Donald and Douglas (with thanks for knap for sharing this with us)
Bill and Ben (with thanks for knap for sharing this with us)
Troublesome Trucks (with thanks for knap for sharing this with us)
Terence (Second Prototype)
Bertie and Harold (with thanks for knap for sharing this with us)
Bertie (with thanks for knap for sharing this with us)
Harold second prototype (with thanks for knap for sharing this with us)
The Gold Rail page from the 1994 Ertl catalog, showing unreleased versions of Henry, Duck, Donald, Douglas, Diesel, Daisy, Mavis, Terence and Trevor, courtesy of @ThomasTankMerch on Twitter.