Funny thing about proof coins is that they are kind of the opposite of business strike coins in that they are made to be kept pristine while business strike coins are made to be used.
This means that a business strike coin that has been kept pristine gains added value, while a proof coin that has been put into circulation loses value.
Looked at another way, finding a business strike coin that grades at MS67 would be a very good thing, while finding a proof coin that grades at PR67, technically the same grade, would be a disappointment.
Looking at values for instance, that 1992 LMC in MS67 would be worth $10, while the 1992 LMC in PR67 would only be worth $6.
Short answer, conserve the 1992 proof coin, but understand that it has already lost the majority of it's value just by virtue of being in circulation, so don't spend a lot of time/energy on it.
Still a cool find though, isn't it?
This means that a business strike coin that has been kept pristine gains added value, while a proof coin that has been put into circulation loses value.
Looked at another way, finding a business strike coin that grades at MS67 would be a very good thing, while finding a proof coin that grades at PR67, technically the same grade, would be a disappointment.
Looking at values for instance, that 1992 LMC in MS67 would be worth $10, while the 1992 LMC in PR67 would only be worth $6.
Short answer, conserve the 1992 proof coin, but understand that it has already lost the majority of it's value just by virtue of being in circulation, so don't spend a lot of time/energy on it.
Still a cool find though, isn't it?





















