In addition to the numbers printed, there are other factors that greatly contribute to the scarcity of a particular stamp issue, or item of postal history. Such factors include:
1. Whether or not a strong local collector base exists for the material at the time of issue.
2. What the climactic and other conditions are affecting the storage and preservation of the material are.
3. What local attitudes towards the preservation of historic artifacts are, at the time of issue.
4. What the retention habits are for commercial documents and correspondence.
I will discuss how each of these factors appears to play out and affect the scarcity of Nigerian Stamps and postal history and contrast it to the manner in which those factors affect the scarcity of material in North American and European countries.