another snowed in find , 85 Lincoln memorial looks like some raised lines that flow nw to se in the bay, is this another plating issue for zinc lincoln?
I found them like that before, most also from the 1980's. I have guessed for them to be die polish lines.
Words are missing from your comment "another snowed in find,". Think I saw the fine lines---the last I said I saw fine lines, I got in trouble---going ne to sw. They are primarily between the columns, which supports die polish lines. In the second photo there are four prominent lnes going the same way. But to the right are three more the point differently. They seem independent of the columns. My guess bristles from being brushed.
