Error Other | 2017p multiple Raised "Heat Wave" concentric Wavy lines on reverse. (Not die cracks)

[Petespockets55]

I found this 2017p Shield cent with these multiple raised, sort of concentric wavy lines showing up mainly on the devices around EP, M & ONE CENT on the reverse.
They are most visible on the banner and shield but do carry over onto the field and letters. Unfortunately with my limited imaging capabilities I was only able to capture some of the raised lines.
(My apologies in advance but I wanted to get the directions they meander down in print while observing it.)

Top of the shield- Minimal lines
1)There are three "waves" going n.e. off the E (EPU). One each at the middle and bottom right of E. The bottom right exits the shield over the P.
2)There is a third that starts in the field by the shield by E (EPU), continues across the face of the shield to the left top corner of the E and exits the top edge of the shield over the E.
3)One enters the shield over the U of (UNUM), continues to the right side of the M, follows this leg and exits the shield on the far right, the separating band of the shield.

Banner at the bottom (ONE CENT)-
1)Four lines enter the banner from the field above ON.
2)Three exit the banner onto the shield below NE.
3)They continue in a shallow arc and re-enter the banner below the E (CENT), to the lower left and out the top right of N (CENT) and stops at the edge of the banner above the left side of the T.

Image #8 seems to show the lines the best, starting on the banner above LB.
(I'm wondering if these are similar to Stoneman's Lincoln cent he sent to Mike Diamond.)
Thanks for looking, Cliff

[makecents]

Cliff, all I'm seeing are what look to be polish lines.

[Petespockets55]

Cliff, all I'm seeing are what look to be polish lines.

Thanks Jon. They're hard to see but in the 8th image they are undulating lines and start above the LB initials on the banner, drop onto the shield just below the banner, follow along the banner to the right side of the image. Much stronger and easier to see in hand because of being able to adjust the angle to see the lines.
(It's funny because they remind me of the tracks left behind on a leaf by a wandering snail.
(Maybe "Wandering Snails" would have been a better title for this thread!)

[Petespockets55]

And in image number 6 they can be seen crossing the shiny curved area between the banner and shield.

[makecents]

Ahhhhh, I see the sqiggles now. I had to concentrate, I was looking right through them and just seeing the polish lines underneath. Yeah, those are odd.

[jfines69]

Trainee day at the mint - Die Polishing 100 Those are strange looking lines... Cool looking... At first glance they reminded me of lathe lines but on second glance I don''t think there are any lathe lines??? There appears to be ripples in the plating also but the glare makes it difficult to tell... If it were snails they were SUI - Snailing Under the Influence

[Petespockets55]

Trainee day at the mint - Die Polishing 100 Those are strange looking lines... Cool looking... At first glance they reminded me of lathe lines but on second glance I don''t think there are any lathe lines??? There appears to be ripples in the plating also but the glare makes it difficult to tell... If it were snails they were SUI - Snailing Under the Influence

[VAB2013]

LOL you two are a mess! Okay Cliff, this is the first one. Your second find photos are better than these, not sure what you did different but it worked well! It's frustrating to wonder what would make the damage to the dies that we see, especially when it looks like this... I agree random snail trails LOL!

Edit: You know, my first thought when I saw those squiggly lines was what I read about BJ's theory on Trail Dies because it does have somewhat of a melted look. I wish I understood thermal heat and expansion/contraction better. I understand that the pressure of making the die creates heat. That's about as far as my pea brain will go

[jfines69]

Interesting... Looks almost like lathe lines but I am not sure???

[Maineman750]

It looks to me like striations you sometimes see on struck thru grease coins.....much like this : http://www.lincolncentforum.com/foru...ghlight=grease

[jfines69]

It looks to me like striations you sometimes see on struck thru grease coins.....much like this : http://www.lincolncentforum.com/foru...ghlight=grease

Those I think every one saw... The other ones are real difficult to see in these pics... Cliffs other post shows them better... They look like the teeth of a hand saw blade!!!