One of the more unusual models in the Esso Petrol Pump Series was No.9 Horsebox. There was no equivalent model made by Lesney or Benbros although there was a larger Dinky version. It was based on a vehicle operated by British Railways and was manufactured by Maudslay.

As with most of the Esso Series, the Horsebox was a conventional body & base construction with a front tab and rear rivet fixing them together. The casting detail included four side windows and the British Railways logo with 'Horse Box Service' highlighted in white trim.

There was only one colour combination used for the Horsebox, red body with silver trim on the grille, and a black shiny base. 'Horse Box No.9 Made in England' was cast underneath.

An interesting feature of No.9 was the unique unpainted metal wheels which had inner conical extensions making them unusually wide. Why Morestone chose to design them like this is unknown. 

No. 9 Horsebox had a short run and it was not added to the Budgie Miniatures range. There were no variations. It is quite hard to find mint examples which may fetch a premium.