Looks like one.
It is caused when the collar is slightly tilted during the striking of the coin.
Hang on to it if you want as an example. There is not a lot of value in them though.

but what is so 'special' about this 5 cent piece? In 1951, the mint switched to nickel plated steel coins and produced a set of low relief dies to strike the coins as the steel was not as easy to strike as the nickel coins. By mistake, some nickels were struck with the 1950 High Relief obverse die ...

From the pictures supplied, I would say EF40. Checking eBay sold prices and these would be certified coins, a clean EF40 average price is $863.00 but one with scratches the price drops to $331.00. Are you buying or selling? A coin like this should really be certified to get a more accurate grade and...

No problem, everyone has to,learn.
Those are much better pictures now.

Welcome to the forum.
Whatever is on it, it wasn’t there when the coin was minted.
Just some sort of damage.
In the future, please crop your pictures, this will help increase the size.
All that background is not necessary.

Welcome to the Forum
That is just an 8 that is damaged and looks like a 3.
It is impossible in the minting process for a letter
or number to change.

If the rim and beads are recessed, then you are right John 1000 and that would account for the
damage on the reverse but to me they looked raised, that is why I was questioning it.
Perhaps the OP can verify if the second image is raised or contuse.

I can’t see how this could possibly happen during the striking of the coin. The reverse looks like damage and the fact that the damaged section has a rim and shows large beads while the original Cent has small beads eliminates any thought of a double strike. By the same token, I can’t say how this w...

Could you give us the weight to 2 decimal points please.

It is 90% silver and has some Machine Doubling but other than that, I don’t see anything special.

As the edge stamping is done at a different stage, it is 50-50 as to which way it is reading.

I didn’t put a value on it, Coins and Canada did. They go by the sold prices at auctions and eBay.
It is supply and demand that dictate prices. The fact that a pointed 5 is worth more usually means
there are less available due to a lower mintage but how much lower is impossible to say.

Not really aa surprise, I have one myself.
It is listed by Charlton as Variety Obv.-002 caused by "Machine Doubling Damage."
It is fairly common and doesn't ad much value.

Not an error, just damaged.
You can’t have a coin that was struck in collar that is out of round.

That is a common 2x2, it won’t hurt the value to remove it.
Just put it back in another one after taking the photos.