Options
Barber Half - How does this toning pattern develop?
BryceM
Posts: 11,937 ✭✭✭✭✭
Merry Christmas everyone!
Here's another question for the collective genius of the boards. I recently acquired this Barber to update a spot in my type collection. The coin is absolutely gorgeous in-hand and it has lively luster behind and around the toning. I'm a big fan of the "cir-cam" look, and visually, at least, this is somewhat along the same lines. My understanding is that the typical "cir-cam" look develops as day-to-day wear removes toning from the high points.
This coin does not appear to have been ciruclated and was given an MS grade by our hosts. How then, without wear, does this sort of toning develop in the protected areas but not over the devices? I'm suspecting an old dip somewhere back in time, but that doesn't seem to explain the whole story.
Sorry about the detail and focus in the photos. This represents the apex of what I can accomplish with my little P&S (PoS?) camera.
It's pretty easy to track this coin down using auction results, but you can guess the grade while you're at it.

Here's another question for the collective genius of the boards. I recently acquired this Barber to update a spot in my type collection. The coin is absolutely gorgeous in-hand and it has lively luster behind and around the toning. I'm a big fan of the "cir-cam" look, and visually, at least, this is somewhat along the same lines. My understanding is that the typical "cir-cam" look develops as day-to-day wear removes toning from the high points.
This coin does not appear to have been ciruclated and was given an MS grade by our hosts. How then, without wear, does this sort of toning develop in the protected areas but not over the devices? I'm suspecting an old dip somewhere back in time, but that doesn't seem to explain the whole story.
Sorry about the detail and focus in the photos. This represents the apex of what I can accomplish with my little P&S (PoS?) camera.
It's pretty easy to track this coin down using auction results, but you can guess the grade while you're at it.

0
Comments
I like it!
You don't see many like this because the dipper gets to them first.
Your coin was probably never dipped. Grade of MS63?
roadrunner
In honor of the memory of Cpl. Michael E. Thompson
Best wishes,
Eric
Edited to add: The coins I have had with this type of tone were LONG term cardboard storage.
I know its not even close to correct to call this a "cir-cam" look, but the contrast between lustrous devices and toned fields is what drew my attention. It is so much more interesting than the blast white examples out there. I can't really seem to get too excited about the sameness within the seated and barber series, but this example is really fascinating. I keep coming back to stare at it.
Can anyone explain chemically why it should have toned like this in an album? It doesn't make sense to the engineer in me, but now that I think about it, it does look old. What a shame how many must have been dipped.
It is indeed. The coins I had with this tone were Pr Barber and Seated.
I see I did not wish you a Happy Holiday - so - Happy Holidays!!!
Best wishes,
Eric
Very nice, BTW.
See http://www.doubledimes.com for a free online reference for US twenty-cent pieces
BTW, here's what the TPG's thought of it:
I paid a small premium for this coin but I doubt I'll ever regret it.
I have seen this type of toning on occasion caused by long term storage in an album, I call it antique toning in my personal reference. As I recall my 1911 and 1908 were similarly toned to this one in the set. The 1908 has revisited me and is in my inventory at this time. I crossed one of these from an NGC holder (it might have been this coin) and it was later CAC'd. Personally I much prefer a coin such as this to a dipped white one. Not everyone's cup of tea for sure but I'm glad you enjoy it too. Merry Christmas to you and your family and thanks for posting. I loved seeing it again!
Website-Americana Rare Coin Inc
so I have no doubt she is a stunner in person. She certainly looks great from your photos.
I agree with everyone who said long-term storage in an old cardboard-style album as the cause of the toning.
You asked why it would tone like this in an album? Simple: older cardboard contained quantities of sulfur,
which is highly chemically reactive with silver.
Congrats on a great coin.
<< <i>You asked why it would tone like this in an album? Simple: older cardboard contained quantities of sulfur,
which is highly chemically reactive with silver. >>
Thanks, but that isn't my question. Obviously the culprit is sulfur, but why would the reaction take place in the relatively protected areas in the fields while the devices are relatively spared? The carboard would be expected to be in direct contact with the high points - in this case the rim and devices, yet those areas are spared while the areas not in direct contact with the cardboard show the toning. Most old album peace dollars and walkers show pretty uniform toning. This one shows more of a cameo type effect. Is it something to do with surface hardness, metal flow, a planchet treatment particular to this era, the barber design, or something else?
Whatever it was, I like it.
In honor of the memory of Cpl. Michael E. Thompson
Experience the World through Numismatics...it's more than you can imagine.
Basically, the coin survived being dipped, but was covered and protected enough that its patination was slow and was accelerated at the edges. Probably from sitting in an old cardboard folder with chemicals that would react to silver.
Numismatics would be so much more enjoyeable if the majority of coins hadn't been cleaned and tampered with and looked exactly like that 1912 half...IMO.
Tyler
Thanks for sharing.
Dave
By the way, I love the look of your Barber half!