Conservation Showcase: 1953 25c PF
Posted on 3/26/2012
A recent example from our conservation laboratory.
Proper storage is imperative in keeping the coins in our collections pristine. Improper storage can lead to some downright ugly things happening to our treasured coins. Airtight holders, such as those offered by NGC, and proper storage conditions away from heat and humidity can keep our coins looking their best for years to come. This proof 1953 Washington Quarter had suffered through years of improper storage likely in poor holders and in less than ideal environmental concerns. Thick residues had formed over the surface of the coin causing details to be obscured. Oftentimes residues as opaque as on those on this coin can cause irreversible damage to the surfaces underneath.
The conservators at NCS are faced with special challenges when removing heavy residues from proof coins. Care must be taken to not damage a coin while removing those unattractive residues that have a very real possibility of damaging the surface of a coin permanently. Luckily for this proof Quarter Dollar, the residues were only hiding the true beauty of the surfaces and had not done permanent damage. This coin was able to grade very well with NGC following the special work by NCS conservators.
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