[Graham Boak]

The patterns were standardised and very different: to my eye these are the patterns for the 70/71 scheme and not those of the 61/62/63, but this is from memory and not direct comparisons. Use of the patterns allows us to distinguish between the colour schemes without having to make use of colour interpetation from b+w photos. There are a number of features that point to the later scheme, apart from the lack of a third colour in either photo.

Although 70/71 were often very difficult to distinquish from one another in many prewar photos, with fresh fairly-glossy finishes, with use the 71 appears considerably lighter. This may also be a function of the film and the filters used, but the contrast presented is not untypical of that seen in many 1940 photos.