Other Stamp Varieties
Philatelic Errors Freaks and Oddities
Errors, freaks, and oddities sound like judgmental characterizations, but for philatelists, these are terms of art. Errors are stamps with serious mistakes that are repeatable, for example, a missing perforation. Freaks are less serious defects, being stamps whose variations are minor. Oddities, not surprisingly, describe stamps that are neither errors or freaks, more like curiosities than out-and-out mistakes. For example, imperfect stamps...