Copper Lincolns Vs Zincolns: Durability Testing!

Salt water toning, for the win.

I have noticed when metal detecting a farm field where chemicals are used, the Copper coins are close to destroyed while Silver still looks okay. Maybe put them in a garden with fertilizer for awhile. I am thinking the Zinc cents would be toast soon.

I just went back and read the whole thread since I hadn't checked it since I first saw it the first day. It seems Numisma was beat me to it thinking along the same lines as I was with breaking the zinc coating and goign with a bury in the ground route.

I just made these tonight and will be putting them outside tomorrow.

All of the coins will start out the same UNC Red grade.

I counter stamped one set of Zincolns to see if breaking the copper plating would speed up the corrosion. The 2009's are as minted (and I weighed them to make sure they weren;t mint set coppers) I don;t think counter stamping the coppers will have any affect.

The & will be going into the dirt, the C will be sitting out in the air on a concrete slab, and the O will be sitting out in the air on a piece of wood.

Nice.

We will enjoy your reports.

After the pictures they were buried shallow in the same area with a handful of weed and feed mixed into the soil. I can't believe it is December 11th, Looking at a high in the 60's today. I took a walk with short sleeve t shirt today, but rain starts tomorrow, so will give the coins a good soak in the fertilized soil.

I finally went out today and put the coins out. I still need to get the other 3 buried.

Good idea.

Great thread guys... will say that saltwater toning was definitely interesting... I did not expect that.