Images via: (Top row) 
“Phoenicopterus ruber” by Nacho, “POSTCARD STAMPS” by EVERYMAN FILMS LTD (EVERYMAN FILMS LTD), “POSTCARD STAMPS” by EVERYMAN FILMS LTD (EVERYMAN FILMS LTD); (2nd row) “Republique” by Homini:), “SFRJ 1h” by Brian Eager (cropped from original), “Modern Postage Stamp Album 12” by bomont57 (cropped from original); (3rd row) “Romanian Stamps Postcard” by KLMircea (cropped from original), “United States stamp: Labor Day” by Karen Horton; (4th row) IMG_7231.jpg by Tom Page (cropped from original), MAROC by Homini:) (cropped from original), “POSTCARD STAMPS” by EVERYMAN FILMS LTD (EVERYMAN FILMS LTD); (Bottom) “POSTCARD STAMPS” by EVERYMAN FILMS LTD (EVERYMAN FILMS LTD)
