Monroe sintered errors instead of quarter planchets

packers88 · February 23, 2008 6:30AM

Well everyone was looking for monroe dollars struck on quarter planchets, but the major error now seems to be the so called sinter error. I can't see these catching on like the Adams double struck or washington smooth edges, but this is a quite interesting error. Has anyone found any of these? I wonder if these hit the front page of coinworld what they will do in price. Are these worth buying at these levels of $20 to $25?? I'm getting one for sure, but I'm hesitant to buy a bunch of these not knowing how many are out there.

Manorcourtman · February 23, 2008 6:37AM

They were the rage for a short period of time when the Washingtons first came out. I found several and had PCGS authenticate 3-4. I sold a couple for $200+ and then the prices came screaming down. So if the Monroe's are already at $20 I wouldn't expect much growth potential. A neat coin nonetheless.

commoncents05 · February 23, 2008 6:37AM

There are sintered planchet coins for all the presidents so far I think.

-Paul

FredWeinberg · February 23, 2008 7:42AM

Yes, they've occured on all Presidential Dollars so far,
and should continue.

However, please be very very careful - 97% of what I've seen
offered on Ebay are NOT genuine Sintered/Mis-Annealed Planchets.

Like the unplated zinc cents, it takes seeing some no-doubt genuine
coins to understand what to look for in alterations, and the real ones.

One of the basic ways is to make sure the coin has "luster" -
100% of the flat, dark, no luster coins I've viewed on Ebay, or
in person at shows, etc., are surface alterations.

Even a mid-color or dark Sintered Presidential Dollar will have a
somewhat "cartwheel effect" as to it's luster - something that
is difficult to duplicate......

That's one of the methods used to authenticate one....

mach19 · February 23, 2008 7:47AM

I have not recieved my bag's from the mint as of yet, However I am not getting my hopes up. I guess it is possible, but highly unlikely.

clackamas · February 23, 2008 7:51AM

Fred - these are really dark coins you get in bags and rolls from the mint, these are the Sintered, right?

charley · February 23, 2008 7:52AM

Dear Mr. Weinberg, thank you for a wonderful Post. TTT.Respectfull, John Curlis

SUMORADA · February 23, 2008 8:31AM

Here are 2 we found in rolls, as Mr. Weinberg stated they both exhibit a cartwheel.........

packers88 · February 23, 2008 11:37AM

Fred, so what are these then? If they are coming from UNC rolls what else could be causing the blackness? I do have a sintered Adam's dollar that I found when I searched hundreds of rolls of Adam's dollars. When I found it the coin stood out like a sore thumb. It was so noticable and looks similar to what I've been seeing on ebay for the so called Monroe sintered coins- a black coating that is kind of broken up into pieces. THe degree of blackness does seem to vary from what I've been seeing on ebay and I've attached a copy of one I was thinking about buying. Is this a sintered error or something else? If these aren't sintered is there any collectible value to these then?

Monroe sintered errors instead of quarter planchets

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