Trying to learn more about ERDL, and running into some question marks. I have several pairs of pants that show, what looks to me like, a mix of cammo patterns. Here is pair #1 that seems to mix together GD and BD in a very random way. Was this common or is there anything else about the pattern of the pants and contract/ date (1978) that would explain this arbitrariness? Also, some edges are blurry, some are not. Is it correct to assume that the blurry ones are earlier?