Found this one recently. This is the first wavy step to be reported. Originally attributed in 1995 by John Wexler and then again, in 2000, by Ken Potter. 1994P-1DER-001. Columns 1, 2 and 3.
Columns 7, 8 and 9.
Columns 10, 11 and 12.
Steps and columns 6, 7 and 8.
Hard to see trails going down from designers initials.
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