declanwmagee Posted June 9, 2013 Posted June 9, 2013 Is this what happens when someone overdips silver? Looks like a drip... Quote
Nick Posted June 9, 2013 Posted June 9, 2013 Is this what happens when someone overdips silver? Looks like a drip...The coin itself looks a bit polished. The feature on the edge looks like a bit of metal overflow that escaped the collar and has folded back over the milled edge. Quote
Peckris Posted June 9, 2013 Posted June 9, 2013 Is this what happens when someone overdips silver? Looks like a drip...No. You can't get anything extra from dipping apart from reduced value Quote
declanwmagee Posted June 9, 2013 Author Posted June 9, 2013 Is this what happens when someone overdips silver? Looks like a drip...The coin itself looks a bit polished. The feature on the edge looks like a bit of metal overflow that escaped the collar and has folded back over the milled edge.Oh, well, that's a plus - at least it's not post-mint. I'm sure it has had a buff too, Nick - probably by the dipper. An overdipping drip would have been worse though, I think.Just one of my many duff-photo gambles that didn't pay off! Quote
Coinery Posted June 11, 2013 Posted June 11, 2013 Is this what happens when someone overdips silver? Looks like a drip...That's a filed solder blob, surely? Quote
declanwmagee Posted June 12, 2013 Author Posted June 12, 2013 Now what would someone be doing blobbing solder on a coin for? To cover up an edge knock, so you think? Quote
Nick Posted June 12, 2013 Posted June 12, 2013 Now what would someone be doing blobbing solder on a coin for? To cover up an edge knock, so you think?Easily removed if you have a soldering iron. Quote
Gary1000 Posted June 12, 2013 Posted June 12, 2013 (edited) Now what would someone be doing blobbing solder on a coin for? To cover up an edge knock, so you think?Easily removed if you have a soldering iron.Probably ex mount. A soldering iron is more likey to make an even bigger mess. If it solder it will have alloyed with the silver. Edited June 12, 2013 by Gary1000 Quote
Nick Posted June 12, 2013 Posted June 12, 2013 Now what would someone be doing blobbing solder on a coin for? To cover up an edge knock, so you think?Easily removed if you have a soldering iron.Probably ex mount. A soldering iron is more likey to make an even bigger mess. If it solder it will have alloyed with the silver.Really? I can't imagine any soldering iron getting anywhere near hot enough to melt the silver so that it would alloy. Quote
Accumulator Posted June 12, 2013 Posted June 12, 2013 Now what would someone be doing blobbing solder on a coin for? To cover up an edge knock, so you think?Easily removed if you have a soldering iron.Probably ex mount. A soldering iron is more likey to make an even bigger mess. If it solder it will have alloyed with the silver.Really? I can't imagine any soldering iron getting anywhere near hot enough to melt the silver so that it would alloy.If it is solder, you need an electronic engineer's "solder sucker" to remove it cleanly. A few pounds from RS Components. Quote
Coinery Posted June 12, 2013 Posted June 12, 2013 If it was some sort of soldered fixing, it would have been added using a jewellers blow torch, you can't silver-solder with a soldering iron...it will have alloyed with the milling, if it's solder.It does look ex-mount, jewellery piece of some sort to me! Quote
Gary D Posted June 12, 2013 Posted June 12, 2013 Now what would someone be doing blobbing solder on a coin for? To cover up an edge knock, so you think?Easily removed if you have a soldering iron.Probably ex mount. A soldering iron is more likey to make an even bigger mess. If it solder it will have alloyed with the silver.Really? I can't imagine any soldering iron getting anywhere near hot enough to melt the silver so that it would alloy.That's how solder works, it forms an alloy with the surface of the material being joined. It's not like glue which adheres to any roughness in the surface texture.It actually penetrates to a depth. Quote
Nick Posted June 12, 2013 Posted June 12, 2013 If it was some sort of soldered fixing, it would have been added using a jewellers blow torch, you can't silver-solder with a soldering iron...it will have alloyed with the milling, if it's solder.It does look ex-mount, jewellery piece of some sort to me!Ah I see, so by soldered fixing they mean welded. Quote
Sword Posted June 12, 2013 Posted June 12, 2013 If it is solder, then the person who did it was a bit sloppy as he put the mount on 10:30 rather than 12 o'clock of the coin Quote
Coinery Posted June 12, 2013 Posted June 12, 2013 If it was some sort of soldered fixing, it would have been added using a jewellers blow torch, you can't silver-solder with a soldering iron...it will have alloyed with the milling, if it's solder.It does look ex-mount, jewellery piece of some sort to me!Ah I see, so by soldered fixing they mean welded.Closer to the process of welding than lead soldering, closer still to brazing! The silver solder is designed to melt only fractionally ahead of the silver item itself. I'm no expert on silver soldering, but I have soldered a couple of split-ring findings in the past. Overcook the heat by the tiniest amount, and the whole thing becomes a molten blob! Quote
Coinery Posted June 12, 2013 Posted June 12, 2013 If it is solder, then the person who did it was a bit sloppy as he put the mount on 10:30 rather than 12 o'clock of the coinDepends on which side of the coin they wanted to display? Could have been included into a charm bracelet, brooch, etc, doesn't necessarily mean a pendant was its purpose!I have had endless holed hammereds, where it is the greatest irritation to find the hole doesn't pleasingly align for a necklace. Quote
Gary D Posted June 12, 2013 Posted June 12, 2013 If it was some sort of soldered fixing, it would have been added using a jewellers blow torch, you can't silver-solder with a soldering iron...it will have alloyed with the milling, if it's solder.It does look ex-mount, jewellery piece of some sort to me!Ah I see, so by soldered fixing they mean welded.Closer to the process of welding than lead soldering, closer still to brazing! The silver solder is designed to melt only fractionally ahead of the silver item itself. I'm no expert on silver soldering, but I have soldered a couple of split-ring findings in the past. Overcook the heat by the tiniest amount, and the whole thing becomes a molten blob!The reaction with solder and the parent metal is called wetting. Quote
Coinery Posted June 12, 2013 Posted June 12, 2013 To truly KNOW a dipped coin, I believe you have to have dipped a few yourself, if only as an experiment! The Goddard's Silver Dip, so often talked about on here, is available even in the most basic of hardware stores! I really recommend dipping a dozen junk coins, .925, .500, even CuNi, and see what happens! Even leave an example in for 20 mins, and then look at it...the mystery of dipped coins will be revealed in a simple half-hour tinker!Really worth the £4 for the dip, and the fiver's worth of coins! Quote
Peckris Posted June 12, 2013 Posted June 12, 2013 To truly KNOW a dipped coin, I believe you have to have dipped a few yourself, if only as an experiment! The Goddard's Silver Dip, so often talked about on here, is available even in the most basic of hardware stores! I really recommend dipping a dozen junk coins, .925, .500, even CuNi, and see what happens! Even leave an example in for 20 mins, and then look at it...the mystery of dipped coins will be revealed in a simple half-hour tinker!Really worth the £4 for the dip, and the fiver's worth of coins! Very true. And then you would discover that dipping CANNOT add metal! Quote
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