Carolus IIII (Charles IV) Coin

Any more details and ideas on this coin 40mm wide x 1.5mm thickness, thanks again.

Why George? On the coin it says Carolus IIII (Charles IV).

Query  - But I don't know if yours is a forgery or just heavily oxidized.

I was handling a George III Britannia 1806 at one point, kind of got stuck in my mind at the time querying this coin. Shame the date has worn off. 

Hi

This mexican (M°) 8 Reales coin is not legit; but that doesn't automaticaly mean  it is a forgery.

Many government officials in the hispanoamerican colonies used uniforms with bronce/copper buttons imitating coins.

I'm not quite sure (picture is not clear enough), but isn't there some  solding residue on the shield on the reverse?

And the thickness: 1, 5 mm also speaks for a button (even if plated with silver to produce a fake coin would not have reached the average 2, 5 mm of a real 8 Reales piece)

Regards

Interesting, I'm new to this so I can't further with my limited knowledge specially coins of this age and nature. I will check it over in more detail.  

 This example is representing itself to be minted in Mexico, not Chile. Possibly genuine and sea salvaged. To my eye, it appears to be genuine. If you could provide weight to the nearest 1/10 of a gram, that could help in making the correct determinaion.

OM . 8R .  FT .

1801, 1802, or 1803.

N#18852

Thickness of 1.5mm is a problem. That's really thin. Is that perhaps a typo, or misread? 

No way it could lose all of 1mm and still have any surface detail on both sides.

Knowing the weight will help a lot.

I don't think the button theory holds up. 40 mm is huge for a button. Uniform buttons are generally 25mm.

Also, if were made as a button, it would not have a detailed reverse. 

True. A photo of the edge would be very helpful as well.

Not invested in a scales yet, something on my to do list. Here is a couple pics of coin edge, shame the coin is in such a state. 

Looks more like 2 mm and whatever rim it had that made it 2.5 mm was worn away.

I think I can still see some of the remnants (IE alternating rectangles and circles) of the original rim design although it is difficult to be certain. Replicas almost never go to the trouble of doing so but if so do a very poor  similar design. I also just noticed that the thickness of  many of these types are not noted on the Numista pages. I will check mine to corroborate to yours and add the data to the catalog. Some of these flaws on your coin could be explained as loss due to saltwater corrosion. Still leaning genuine in my mind. All the remaining details just seem right to me.

Manipulated lighting for clues on the rim.

All mine are at least 2.5mm. 

Thanks harryg for your info/help for those close up details and thanks to all who replied, great info and interesting subject. Shame the coin in such condition. My son has a digital thickness gauge tool, will get him to check the coin again for more accurate thickness, best.

cornishdynar-994-AD

Thanks harryg for your info/help for those close up details and thanks to all who replied, great info and interesting subject. Shame the coin in such condition. My son has a digital thickness gauge tool, will get him to check the coin again for more accurate thickness, best.

A digital scale costs about $15/$18 U.S. Well worth the investment. Yours sons caliper is very useful as well. FYI, most of mine vary a little but I am measuring an average of about 2.2MM for these types, depending on wear and condition. Good luck with it, whatever the outcome.

The edge of one of mine for an example:

Mr. Midnight

I don't think the button theory holds up. 40 mm is huge for a button. Uniform buttons are generally 25mm.

Also, if were made as a button, it would not have a detailed reverse. 

 

Hi Mr.Midnight

I understand your doubts regarding the 40 mm, but there are some buttons which are 30 or 33 mm. 

And many of them have both sides detailed using 8 Reales pieces as a  model. For example this 8 reales button from Peru (Lima):

https://rp.bidinside.com/en/lot/9634/peru-boton-virreinal-simil-8r-1805-ceca-/

Regards