First example of this:
Same stamp, same plate position, different colors, different papers - All three printed from the same plate - Plate 11
In this case, the red may have been printed first.
They were planning to change from Black to Red on the penny in the middle of February 1841. However, they needed a few more blacks to tide them over until the transition. After a bunch of reds had been printed, they printed 800 sheets in black on Feb. 1, then went back to stockpiling more reds.
The third is a trial printing (from the same plate) on a security paper with silk threads (as opposed to watermarks). They printed 8 sheets on this Dickenson Silk Thread paper.
