Same as your 1944 cent, that is Machine Doubling.

Much better pictures, I wish you had shown those in the first place.
I agree that it is a Struck Through, most likely grease.

Both are low line.
In the future, please crop your photos. This will help increase the size.

Welcome to the forum

Not an error, it looks like some sort of corrosion has attacked you cent.
Possibly been buried or exposed to something corrosive for awhile.

Looks like a small die chip on the post, not uncommon.

I don’t think that is a depression. What I see is an occulated gas bubble to the left of the
date which being higher probably protected the date from the amount of wear that is
apparent on both sides of the coin. What you have is just a well worn quarter.

If they are holes, then it is damage. That could not have happened when the coin was struck.

The coin in the ICCS holder is a 1949, not a 1948

What does the obverse look like.
You should always supply photos of both sides, whether you think it is necessary or not.

Going by the spacing between the denticles, I believe your right.

If that black circle is incuse, it is possible that it is a Struck Through
which would be a minor error.

They were introduced in 1945 and used until 1947.

Depends on what silver coins you are referring to. Most of the high mintage silver coins turned in are either damaged or well worn with only bullion value. If it is a rare coin, then it is in someone’s collection. There is no way to know exactly how many have been turned in to be melted but if it wa...

If the diameter is smaller, then it has either been spooned or is a
dryer coin, doesn’t matter which, it is still damage.

Duplicate post.
See “ Mystery coin”.