1970S-1mm-005p

[Doug]

Just snagged one of these critters for the first time in a proof set today. Unfortunately, it's got some "milk toning" and more than a few problems ( die flaws & carbon cancer- do mint employees spit on coins? LOL) that really shoots it down to a 64 in my opinion. Sad for a proof set! Anyway, it's an eds and a solid example for the rpm with some strong md on the obverse motto. Anyone have an example of this rpm yet? Not sure if it's a "good find" but at least it fills another of the glaring holes in my collection. Ain't pretty but.... I finally got one!

[coppercoins]

I've only seen one of these before...really nice RPM too. Congrats!

[JRocco]

Ask Chuck about a method he recently described to remove the milk spotting/hazing seen on proof Lincoln's. It involves using goo-gone/soap and hot water. Can you post the method here Chuck?

[coppercoins]

Yes I can...and I found that it does NOTHING to change a coin's color, even if that color is undesirable. The only thing this method does is remove haze and PVC residue, but the glory is that it does it without ruining the color of cents, as is the case with all other methods I've seen.

The product is Goo-Gone. BobP enlightened me to it at one time, and I tried it on a proof with a q-tip once to see what happened. It removed the film from the areas the Q-tip reached without a problem, but the thing I found is that you had to press dangerously hard with the q-tip to get close to the devices.

That's when this idea hit me. Do it with your bare fingers over the sink, and use a liberal amount of the goo-gone while rubbing the coin with pressure. You relly gotta rub it in to get the full effect, becuase otherwise you'll end up with a coin that has haze just around the devices.

Anyhow, once you've done a good job with the Goo-gone, wash the coin with a mild detergent liquid (dish soap) under hot water in the sink, then pat the coin dry with good paper towels - the soft and absorbent kind.

It works great!

[Gabe]

Hmm.. one would think that such method would leave some sort of hairline marks on the coin. Very interesting. I have a great number of proof varieties that need to be fixed like that.

Chuck- I had heard of dipping cents in mineral oil to preserve the red color, what are the exact instructions on doing this? and does it work on zinc 1943 cents?

[coppercoins]

Hmm.. one would think that such method would leave some sort of hairline marks on the coin. Very interesting. I have a great number of proof varieties that need to be fixed like that.

You can't hairline a coin with a non-abrasive liquid and softened fingers. Your skin is much softer than the metal.

Chuck- I had heard of dipping cents in mineral oil to preserve the red color, what are the exact instructions on doing this? and does it work on zinc 1943 cents?

Dunno...I wasn't the one who came up with that.

[Gabe]

You have a hint about mineral oil preserving the redness of coins in the date guide section of this site. Do you dip the coin in the mineral oil, or so you take a q-tip and crush the coin over with the mineral oil?

[coppercoins]

The idea would be to use a tiny dab on a q-tip and very lightly coat the coin...not to dip it.