Post Different Coin Surfaces Here

I had a few coins that I found at the beach, but those all went into a roll and were spent years ago. The saltwater was not kind to them; most I couldn't even make out the date!

2000 Solomon Islands.
Olympics sailing.
Dollar.

interesting thread

The piece below is not a gold coin, but a 1568 silver taler from Cologne that was mounted in a "coin-friendly" manner via a band holding the coin in place. The surface of coin and bezel was then gilded using a mercury/gold paste painted on the coin; heating above a fire caused the mercury to evaporate so that a thin layer of gold was left behind. At least 90% pure silver is required for the gold layer to hold firmly. The French call this surface modification vermeil.

Total weight of the piece (taler+gold sheet +ring around coin) = 34,16 g.

The overall effect is the impression of a massive one ounce gold coin, which is deception of course. Another effect of the gold is smoothening of the strike effects, which is a pity.

This type of coin modification was commonly used to make a bezel or brooch more attractive. Some initials (of the first owner?) are on the outside face of the silver band holding the taler in place.

Clad coin series that's been artificially toned, including the wavy lines.

Aluminum, toned. This is the first time I've come across a toned aluminum coin, not that I've been particularly looking. The picture shows its color pretty well: it looks very similar to the gray plastic color of toy money. You can see a little bit of untoned aluminum among the letters on the reverse.



These are both(?) silvered. The first one is a bronze Burmese coin and the silvering made it look a lot like a silver coin of similar type. I am less sure that someone tried it on the Dutch coin as there's no trace of silvering on the obverse, but then what'd explain the reverse?

Thought I would bump this thread with this coin I found in an aquarium.
I have a planted aquarium, and while I was doing maintenance on it I found this Washington quarter with some environmental damage on the aquarium substrate. How it got there I don't know. It has an interesting copper color.

Very interesting!


Oh my!

Someone must have made a wish.