Lines with dots all across back

hard to get picture hope you can see the dot lines

 

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View attachment 1031483 hard to get picture hope you can see the dot lines dont know what would cause this

 

Morse code?

 

Lol maybe now all i have to due is figure out the message

 

I kind of see something but we will need more information. Are the dots tiny holes? Are they surface level. Could be adhesive residue from some tape that was placed on it then peeled off.

 

They are holes and it very faint under America looks almost like a small piece of wing like one feather.

 

wear and tear? Looks like it was dragged across something at one point.

 

Ok here a picrure in bright light you see the dots one right in the n of United hope this helps see them.

 

Oddl or not found top one today.the same date dont know what on top one the black

 

It would be nice to see the obverse.

 

Sand Blasted

 

The reverse wasn't sandblasted.

 

Why say sand blasted

 

Some type of tool that might mimic a meat tenderizer? But I really have no clue. Defective planchet? Pitted die?

 

Ok thank you all for your responses

 

Perhaps a strike through of some kind on the reverse, a thin fabric. The reverse is dull and shallow while the obverse has more complete depth even though very rough.

 

That sounds very possible .Just so diffrent had to share.

 

I found someone sell a 1966 with what they say is a wire going in it so maybe this was struck close to that one when made

 

Looks just like the surface of metals that I used to sand blast during one of my first jobs as a kid. I used to sand blast big rig under carriages before they could go on to the painter for repainting. Looks real clean and pitted. Try it some time. Sand blast a coin and see how it looks. The larger the blasting medium the larger the pitting. Using fine medium the pitting is also fine.