Quick Error Question - now with pics What is it called when the design from one side of the coin can be seen on the other? Let me know, Thanks
As a general rule, no. But there are some examples where that is not the case. Tell us what you have and then we can answer specifically.
My 1862 $1 gold coin was struck with clashed dies. There's also some machine doubling at the base of the wreath, but I know that doesn't add any extra value. Here's a pic...
If gem BU and a true mint error they have some value but If gem BU and a true mint error they have some value but many are contrived, (faked) it's easy to do. The more easily you can see it without magnification (at arms length) the better, (if real) it is.
2 things, 1. The higher numismatic value a coin has the less any error will advance that price, ie: it's already valuble to begin with and the error is a bother because people do not buy coins like these for an error. 2. The coins of this type 1800's gold and type coins have clashes more often than not.