Pennies are made of copper. When copper is exposed to oxygen it will corrode (turn brown) because of chemical reactions. The oxidation creates a brown coating called patina. These are copper oxide molecules and they actually protect the metal underneath. Over time, copper transitions from its sh...
I had a handful of Indian head pennies that were so black that you couldn’t make out any detail or date at all on them. So I dumped them into this machine with a copper cleaning solution. Itdidclean about half of them pretty well, but the other half were either left still very bla...
Soaking your pennies in vinegar (or lemon juice) and salt is the best way to clean them. This method produces a very bright orangey-copper color on the coins using the low levels of acids contained naturally in vinegar and lemon juice to remove the patina (brown oxidation) on the penny....
How to Clean Old Pennies Ascertain value of pennies before cleaning.I know I’ve mentioned this already, but I really can’t stress the point enough. Some pennies are ridiculously valuable. You don’t want to mess them up. My favorite way of doing this is to purchase a current copy (va...
Patina can be greenish copper- type colours or brownish hues on copper and bronze based coins, or rainbow to grey to black on silver coins. It’s best not to clean patina off rare coins as the value can be reduced. The vast majority of coins do not increase in value after cleaning, ...
Join our Collectibles World to see how to manage your collection of antique broaches, organize your valuable coins, and how to clean your Star Wars action figures the right way. Of course, that's not all this World is about. Any collectible is welcome, s
When the penny and the nail are inserted into the lemon, they become the positive and negative terminals of the battery. The penny is made of copper and acts as the positive electrode, while the nail is made of zinc and acts as the negative electrode. ...
There are lots of other ways to clean a concrete bird bath. I also tested alka seltzer and copper pipes recently.See my test resultson this method here. If you don’t like the idea of using bleach, white vinegar and water does a pretty good job of cleaning a bird bath, but it does...
Generally speaking, any worn 1971 penny is worth2 cents each. Most 1971 pennies are common. However, there is at least one rare 1971 penny. It's the doubled die 1971 penny, and most are worth from $25 to more than $150! What is the most expensive coin?
The 1980 penny was one of the series known as Lincoln pennies. If you have one of these coins, could it be worth more than its face value? That’s what we’re here to find out! We’re going to explore the 1980 penny value. We’ll find out what separates standard coins from those...