Color mottling (color spots) especially in the coins field is normal for toned coins stored in the above stated conditions as the coins age and tone much faster than if stored in a conventional manner. Due to the storage conditions as stated above, having a coin graded MAY result with the coin being identified as having abnormal toning even though the conditions of storage were unusual but perfectly natural and are market acceptable. Generally only single coins with a value over 250.00 should be sent in for grading.
As mistakes are sometimes made. The item "1950 Franklin Mint Proof set Lot of (5) Beautiful Premium True color Toned 42010" is in sale since Sunday, May 20, 2018. This item is in the category "Coins & Paper Money\Coins\ US\Half Dollars\Franklin (1948-63)". The seller is "rczomb1" and is located in Pacific Grove, California.This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, Indonesia, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia.