Envelope pattern.

[Travis Cobbs]

Bricklink thinks these are 2 different patterns. I'm leaning that way but I'm not entirely convinced that the differences are meaningful. Thoughts?

https://www.bricklink.com/v2/search.page?q=3069bpb730
https://www.bricklink.com/v2/search.page?q=3069bpb779

To me, it seems clear that these are two different patterns. They are very similar, but the following difference appear to be real:

1. No shadow for wax seal on white part.
   
2. Different wax seals.
   
3. Different shape to the lines. (Tan part has three smooth lines and one line with a kink; white part has two smooth lines and two lines with kinks.)
   
4. Overall pattern size on white part is narrower.
   

In addition to the above difference that (to me at least) prove that the patterns really are different, the shadows may or may not be different colors. (It's obviously hard to tell the real color vs. the perceived color after bleed-through on the tan part.)