1984 $1 die fill

[Lochie31]

Got this one noodling $1 bag. Are they called die fill ? Similar one on eBay says struck through

[Basilstate]

Hi Lockie,yes,looks like 'Die fill' from your Pic.,possibly weak strike for whatever reason,interesting but coin has little value IMO.

[gweidion]

Which raises the question, is there a difference?
AI thinks not.
A coin die fill is
a mint error that occurs when debris, such as grease, dirt, or other foreign material, gets into the cavities of a coin die. This foreign material prevents the metal from fully flowing into the die's design, resulting in weak or missing design elements, letters, or numbers on the struck coin. These errors are also known as a strike through grease/oil error.

Looking at the picture I would have called it struck through.

[Basilstate]

'Struck through' in its purest sense would not have the Queens head clearly defined,legend missing so more likely Die fill of some variety.Just MO.

https://www.pcgs.com/news/the-two-types-of-struck-through-error-coins

[fred lever]

To me it's just a weak strike.
The most convex parts of the dies have touched enough to leave a mark.
Simple.
I note so many similar weak coins on eBay also called 'oil strike' or 'die fill or some parrot repeat cause.
One look and they are clearly worn by abrasion/attrition/corrosion.
In other words, damaged and sad little things.
I have a box full of similar coins and never realized they were worth $500 each.
Ok I'm kidding.
Fred.

[gweidion]

Struck through to me is a grease strike which is why part of the design can be weak or missing while some of it can be fine. It depends on where the grease is as it is struck.

[Mister T]

I'd agree with strike-through as some parts of the design are too sharp for a weak strike.