1875 penny F80

[davidrj]

This 1875 penny (F80) arrived today (Ebay purchase)

Raised dot below 1st I in Victoria, this looks identical to the one illustrated in Michael Gouby's new book on an F82 penny (his BP 1875 Cd)

Very odd the same obverse flaw should occur with two different reverses!

There is a suggestion of the same flaw mirrored (next to the ship) on the reverse with a die crack

David

[azda]

David, can you tell me how you stitch the pictures together?

[davidrj]

David, can you tell me how you stitch the pictures together?

I scan coins at 2400 dpi with a dark background, bronze comes out far too dark against the default white background of my scanner

I use Photoscape to do the circular cropping, this is a freebie photoscape download

Once I have images, cropped against a black back ground I use Photoshop to stich them together.

Make a large black blank image, then paste the individual scanned images, flatten layers, then crop to shape

One of those jobs thats very time consuming whilst on the learning curve, but I can now do the complete proces in about 25 minutes

Hope this helps

David

[Peckris]

Very odd the same obverse flaw should occur with two different reverses!

David

Not sure I follow your logic here, David?

[davidrj]

Very odd the same obverse flaw should occur with two different reverses!

David

Not sure I follow your logic here, David?

The accepted wisdom on all the "dot" coins is a transient fault caused by a bit of grit in the works.

Here we have the same dot on an obverse with two completely different reverse dies

Do we resurrect old theories re die identication marks??

I'm off on holiday next week, but when I get back I'll send high res scans to Michael for his comments, this is a very puzzling coin

David

[Peckris]

Very odd the same obverse flaw should occur with two different reverses!

David

Not sure I follow your logic here, David?

The accepted wisdom on all the "dot" coins is a transient fault caused by a bit of grit in the works.

Here we have the same dot on an obverse with two completely different reverse dies

Do we resurrect old theories re die identication marks??

I'm off on holiday next week, but when I get back I'll send high res scans to Michael for his comments, this is a very puzzling coin

David

Interesting. The dot looks far too regular to be caused by grit. It's the same roundness as the 1897 'dot' which is supposed to be non-accidental. But whatever the cause, it has got onto the die and thus appears on more than one specimen.

[davidrj]

Very odd the same obverse flaw should occur with two different reverses!

David

Not sure I follow your logic here, David?

The accepted wisdom on all the "dot" coins is a transient fault caused by a bit of grit in the works.

Here we have the same dot on an obverse with two completely different reverse dies

Do we resurrect old theories re die identication marks??

I'm off on holiday next week, but when I get back I'll send high res scans to Michael for his comments, this is a very puzzling coin

David

Interesting. The dot looks far too regular to be caused by grit. It's the same roundness as the 1897 'dot' which is supposed to be non-accidental. But whatever the cause, it has got onto the die and thus appears on more than one specimen.

Does anyone know if the wide date and narrow date dies for 1875 were used concurrently? Gouby states one known for the wide date penny, this was seen 10 years ago. If the flawed die was around long enough to be used with two different reverse dies, why isn't this a common variety???

David

[Hussulo]

It does look like a man made shape as opposed to a bit of grit and does look like one of the dots in a colon. I think it is in a strange place for an identification mark.

One possibility is a dropped dot. Like a dropped letter error. I don't know if you've heard of this but you can see more here:

http://www.ngccoin.com/news/viewarticle.aspx?IDArticle=557

Once the dropped letter or dot was moved onto the surface (field)of the obverse die, bearing in mind it may contain metal filling, small shavings etc it would leave an imprint on the die after the next planchet was fed in and struck.

[Badger]

Hi David, I checked my 1875 with the obverse dot and it too is a F80, I haven't asked Michael about it as I didn't notice he listed the one he knows of as a F82. It will be interesting to know.

I also noted that there is a small die crack to the right of the ship running from the linear circle to a border tooth which is present on both our specimens.

[Badger]

Here is the rev die crack

Badger

[davidrj]

Hi David, I checked my 1875 with the obverse dot and it too is a F80, I haven't asked Michael about it as I didn't notice he listed the one he knows of as a F82. It will be interesting to know.

I also noted that there is a small die crack to the right of the ship running from the linear circle to a border tooth which is present on both our specimens.

Thanks, interesting. I wonder if Michael's was an F80?

Still looking for the F82 "cannonball"

David

[Badger]

[Badger]

Correction, the 'dot' penny Michael Freeman mentioned was the 1870 with the dot to left of Y. I have not seen one of those, anyone got a scan of an example of this?

Badger