Perforation gauge explained

In philatelic terminology, perforation gauge has two meanings:

See also

References and sources

References
  • Sources
  • External links

    Notes and References

    1. Web site: Stamp Perforation and Print method . Find your stamp’s value . 2013-10-03.
    2. Web site: The APS Hall of Fame 2000-2004. American Philatelic Society. American Philatelic Society. 30 April 2015.
    3. Book: Snee . Charles . Scott Specialized Catalogue of United States Stamps and Covers 2013 . Scott Publishing Co . 2012 . 63–77. 781677423 . 0894874756 .