1915
Panama-Pacific Exposition Issue – Different Perforation
WM: 3
![[Panama-Pacific Exposition Issue - Different Perforation, type EM2]](http://2philately.com/wp-content/uploads/2026/05/imwprobot-530a4aea2c848958bd96d7e9fb361448.jpg)
![[Panama-Pacific Exposition Issue - Different Perforation, type EN1]](http://2philately.com/wp-content/uploads/2026/05/imwprobot-4c5e806147a917718f173d83d4191daa.jpg)
![[Panama-Pacific Exposition Issue - Different Perforation, type EO2]](http://2philately.com/wp-content/uploads/2026/05/imwprobot-13371888046e6a2ad8bee463711a46fd.jpg)
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