Postojna Cave - Underground Post Office 2013
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2013
Postojna Cave - Underground Post Office
22. March WM: None Sheetsize: 1 Design: Matjaž Učakar Engraving: (Design: Matjaž Učakar et Rudolf Bruner Dvoȓak) (Perforation: 14 x 13¼) Perforation: 14 x 13
![[Postojna Cave - Underground Post Office, type ]](https://www.stampworld.com/media/catalogue/Slovenia/Postage-stamps/0831-b.jpg)
