The Post-War Prototypes kit (circa 1981) illustrated below comprises brass sides and other parts to convert Tri-ang Big Big coaches. Each kit includes sufficient parts to build a Mk2a and either a Mk2b or Mk2c, using the chassis, roof and bogies from two Big Big coaches.
Post-War Prototypes Tri-ang Big Big coach conversion kit |
Post-War Prototypes Tri-ang Big Big coach conversion kit |
Post-War Prototypes Tri-ang Big Big coach conversion kit |
Post-War Prototypes Tri-ang Big Big coach conversion kit |

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