Nicely toned and such a high grade too! Do you like toned gold coins? https://www.ebay.com/itm/1819-NR-JF-Colombia-8-E-Escudos-Gold-Coin-AU58-NGC-MONSTER-TONED-Rare-Color-/372292456221?hash=item56ae5c0f1d%3Ag%3AtgsAAOSw441a54O8&nma=true&si=Dj6K65SZflJqNoruDmo6YzBZ1FI%253D&orig_cvip=true&nordt=true&rt=nc&_trksid=p2047675.l2557
Your choice of course, but it's a safe link, checked myself - a completed ebay link. And you also have to realize that it's not his picture. So posting a link or linking to the picture is what members are supposed to do - as per forum rules.
I don’t normally care for colourful toning, but that looks good. Although gold can tone I imagine those colours are from the .125 alloy.
Thanks hotwheels, I too, like this coin! (And the bust of old FERNANDO does not make him look like an inbred dork) A-Huck, T.T.
I like it a lot. I'm not interested in sketchy links, but an ebay link (and well reflected by the URL posted) is not worrisome IMO. That said, it is nice to just look at the photo. As for the forum rules @GDJMSP I'm guessing if attributed okay? Or what about a screenshot clearly identified? Personally I'd want to stay on the side of preserving intellectual property. Oh well, for the OP though, that is a really neat coin. If it was my series and I'd seen it, I would have gone for it.
The only way to do that is by using that ebay link, or by linking to the picture. Anything else is a copyright violation. That's simply the law. There are no exceptions, there is no other way, short of getting written permission from the owner of the pictures. To link to the picture you use the Image icon in the posting box tool bar, the icon to the immediate right of the smiley face. When you click on that icon you see this - Then you merely insert the link to the pic and click on the Insert button. Doing that results in this - A perfectly and completely legal way to do it. What @hotwheelsearl did in post #7 violates copyright law, and forum rules. Which is why his post has been edited.
I've seen toned gold coins, mostly 8 escudos cobs. The toning, such as it is, tends to be reddish. I've never seen blue before on a gold coin. If it was a silver coin, that color would be expected. Pure gold does not tone or tarnish. It is the alloy, usually copper, that can create the red hues. I've also seen old US $20 coins from the 19th century with a greenish cast. Again, I think the copper used for the alloy causes this type of toning. The blue areas on the coin are unusual, I think. Perhaps they were caused by something that the coin came into contact with. Some old envelopes were high in sulfur, such as the manila paper envelopes, so that might be a cause. Another possibility is that the coin has silver as its alloy, instead of copper. If that is the case, then blue toning could occur.
That’s still odd even if silver. Does that mean there is a higher concentration of silver in those specific areas? I thought alloys like this were well-mixed. On that note, why don’t electrum coins seem to tone blue?
Sulfur is the only chemical that I know of that can create the deep blue to almost black toning for silver. You can actually induce this color by exposing a silver coin to something with sulfur in it, such as storing a coin in a manila paper envelope. Also, there's liver of sulfur (nasty stuff to handle), which, depending on the concentration, can induce blue to black toning. In lighter concentrations, a yellow to bronze color can be created. Also, coins treated with liver of sulfur tone even more, even if the solution is well washed off. It seems that exposure to liver of sulfur creates a reaction well past the treatment. In the end, it is usually best to leave toning to nature and time.
Here's an 8 escudos from Lima, 1750, assayer R, and salvaged, that has a somewhat reddish color. 27.0 grams
I feel like the red looks somewhat more natural, and the blue toning looks relatively more contrived.