Were PIEDMONT 460 factory #42 & UZIT backs printed simultaneously ?

[Abravefan11]

Originally Posted by tedzan

Does this suggest that the UZIT backs and the PIEDMONT 460/42 backs were printed simultaneously ?

On the surface it may seem as though the two backs have a connection given both are blue and appear to have a light and dark shade variation but they were not printed at the same time.

First, the Piedmont 42's do have a definite light and dark variation. With the help of Craig Wright, and the survey results from Net 54 members, I have been able to get a pretty good idea of the subjects included in the two different printings. When comparing the subjects included in the light 42 group or dark 42 group to those printed with Uzit backs, it shows they could not have been printed simultaneously.

Secondly, I'm not sure there is a definite light and dark variation to the Uzit back. I have seen light and dark Uzit's but I don't believe at this time that this was the result of a color change like the Factory 42 Piedmont's.