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1939-S Washington Quarter: Cleaning? Or Die Polish Lines
Matt04
Posts: 239 ✭✭✭
As I continue to learn as I go with Grading Washington Quarters I received a Set Of Two BU 1939-S Washington Quarters which seemed to have been stored in old plastic holders case like. I have attached both. My Main concern is the one I have provided a video clip of. Light is not necessary to see these streak lines. Would this be considered a cleaned coin? Or Die Polish Lines.
PVC Contamin on the second one?
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in the PVC video, if you think it's a film, the video is too low res, shaky, and doesn't last long enough. do you think it's a film?
both videos are kind of shaky
the lighting on the first isn't good enough for me to be sure but i'm leaning die polish
I think it’s cleaning. Too many lines
Do you know what a mint die looks like? Die polish is like heavy sandpaper making scratches of various sizes into the die. Mostly the flat portions, which would be the fields. It is difficult to get to the bottoms of the letters. When the coin is minted, these are raised lines on the coin, which go 'under' the letters. The line goes up to a letter and comes out the other side.
After the coin is minted, if someone rubs with sandpaper it goes over the letter and devices. and the line left digs into the coin. On one of your coins, I see a die polish line go up to the L and comes out the other side, without evidence of going over the letter.
Some coins can have die polish lines AND a cleaning so you have to look at entire coin.
Yeah I wish you could just attach videos on here without it having to be from another site. It compresses the video. One second will send photos
post up a few on the pvc one and describe where you think it is
I wish the photos would do a better job, but it seems the marks are focused on the field and not on the bust.
PVC coin or film closeup: You can see the haze? Is it just film?
die polish - straight on shot of the LI in liberty
pvc - reverse too
From the videos I suspect the first coin has a lot of die polish on the obverse, but do think the second coin would benefit from an acetone rinse for potential PVC contamination. Below are two screenshots I captured from your first video and they appear to show die polish throughout the field, but not traveling over the devices. That's good. However, and I could not tell it from the live view of your video, but in the screenshots I wonder if the coin is an AU58. I have outlined the areas of concern in red.
Your videos are quite useful, but might I suggest that in the future you move or rotate the coin much more slowly because it is tough to see what is going on so quickly.
In honor of the memory of Cpl. Michael E. Thompson
Hope these photos help more. I also checked the Quarter under a brighter light for any wear marks and there are no lighter spots compared to AU Coins.
die polish. - you can go by what davewesen and TomB posted. it's sound help
i'm no good with pvc film id - have you ever acetone soaked a coin?
I did once but to remove dirt from a VF quarter just to learn. I have ezest cleaner though and have used it before on ugly toned coins.
pvc needs acetone
The Highest Grade 1939-S Seems to have the same Die Polish Marks. I guess it was a thing for these Minted Quarters in San Fran!
The area in red scares me. I hope its not counting wheel damage.
In honor of the memory of Cpl. Michael E. Thompson
Yeah I don't know if I'd send that one in either-way. I think the other 1939-S is the better of the two visually. I think I did good on these. Either MS64 or 65 these could grade I could see. For what it is I spent 80 on each. I think I did good for these semi key dates in solid condition.