5 Cent 2005 P Bison Obverse Weak G

[lyme3m]

Discovered in a coin roll a few of these 2005 P Bison Nickels with an obverse weak G. Every coin with a weak G shows the same diagnostics on the G. Pictures are of a coin with the weak G and a coin with a normal G from the same roll, along with a magnified view of the weak G.

Thoughts on the cause? Over polishing on the working hub or working die?

[occnumis2021]

most likely just some grease/debris. not much reason to be polishing on the die over there.

[lyme3m]

most likely just some grease/debris. not much reason to be polishing on the die over there.

Thank you. There is no variation to the surface finish as you'd witness from struck through grease in the 'N' and 'G' devices nor any field disruption. I've attached an image of an 'IN GOD WE RUST' grease struck through quarter to this response.

I have a handful of these that are identical which points away from the nature of grease or non-retained struck through object.

If helpful, I can upload a series of magnified images of each coin in the lot?

[occnumis2021]

to be honest, unless you can upload professional images at different angles i would really only be 99% certain but it is most likely grease as with polishing, you would see some sort of polishing lines, especially with that amount of a large letter missing.

you posted a fantastic coin to show how many coins can come with essentially the same strike-through state from debris/grease and those are statehood and more modern quarters which are notorious for grease/debris struck-through which can produce dozens, hundreds, thousands? virtually exactly the same. i've seen many strike-throughs on a few denominations that have produced a multitude of similar coins. just sometimes that crud/grease gets so compacted and pressed against the die(s), it simply refused to break off despite the constant pounding.

ironically that scanned image shows the contrast better than most imaged coins i've seen and done myself. kudos!

[lyme3m]

you posted a fantastic coin to show how many coins can come with essentially the same strike-through state from debris/grease and those are statehood and more modern quarters which are notorious for grease/debris struck-through which can produce dozens, hundreds, thousands? virtually exactly the same. i've seen many strike-throughs on a few denominations that have produced a multitude of similar coins. just sometimes that crud/grease gets so compacted and pressed against the die(s), it simply refused to break off despite the constant pounding.

I'm confused by this part of your response. Dissimilar materials struck through the dies respond differently and leave a witness on the planchet that differs from the planchet making direct contact with the dies.

There is also always some movement of the struck through material even if retained on the die through multiple strikes.

Here is a string of pictures and each is of a different coin at the same angle.

[lyme3m]

Here is another string of images and each is of a different coin at the same angle.

[occnumis2021]

well you do have the coin in hand, so you probably know better than i. perhaps someone else will chime in.

[lyme3m]

well you do have the coin in hand, so you probably know better than i. perhaps someone else will chime in.

Thanks for checking it out.