Unused

An unused stamp is basically one that has been cancelled. Take it as the most generic condition for what most people would consider mint stamps. So, confusingly, "unused" can be used to describe stamps that have had their gum removed for one reason or another.

There are stamps that were issued both with and without gum, as in earlier Portuguese colonies stamps. For those issued without gum using in tropical areas where the humdity would ruin stamps before sale, stamps can be described as NGAI, no gum as issued. 



See

 * NGAI

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