Pole Erection Units
The GPO used two colour schemes up until 1969. The vehicles of the Postal side of the business wore 'Pillar Box Red' to BS381C shade 538, and the Telephone side wore 'Mid Bronze Green' to BS381C shade 223.
In 1969 both colours changed, the postal side becoming 'Service Red, BS381C shade 539, the Telephone side going to 'Golden Yellow', BS381C shade 356.
The interiors of the Minor vans upto 1969 was a buff shade, which could well have been BS 358 (Light Buff) or Light Straw (BS 384) Both in the same BS381C range.