| | Rode brievenbussen | red letterboxes | |
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| | 13040919 | 15100218 | 07100123 | 06025210 | |
| | Brievenbus is Spa, Belgi� | Brievenbus op de Vrijdagmarkt, Gent, Belgi� | Antwerpen, Belgi�/Belgium | London, United Kingdom | |
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| |  |  |  |  | |
| | 07100121 | 14096101 | 10080101 | 06095404 | |
| | Antwerpen, Belgi�/Belgium | Denmark | S�ndergade, Frederikshavn, Denmark | Pietermaai, Cura�ao, Willemstad, Netherlands Antilles | |
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| |  |  |  |  | |
| | 16070135 | 16070136 | 10080148 | 06080405 | |
| | Letterbox, Place du Palais, Monaco | Letterbox, Boulevard Albert I, La Condamine, Monaco | Prinsensgata, Kirkegata, Oslo, Norway | Coimbra, Portugal | |
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| | Rode brievenbussen. | Red mailboxes. | |
| | � Photos/Foto’s: Henk Kuiper, Adriaan van Ek, Arie Jochems | |
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| | Oranje brievenbussen | Orange letterboxes | |
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| |  | | | | |
| | 13080529 | | | | |
| | Tallinn, Estland/Estonia | | | | |
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| | Oranje brievenbussen. | Orange letterboxes. | |
| | � Photos/Foto’s: Henk Kuiper | |
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| | Gele brievenbussen | Yellow letterboxes | |
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| |  |  |  |  | |
| | 14020515 | 07080501 | 09084323 | 10030555 | |
| | Park G�ell, Olot, Vallcarca, Barcelona, Spanje/Spain. | Innsbruck, Oostenrijk/Austria | Akti Koundouriotou, Kos, Griekenland?Greece | Metro station Ch�teau-Landon, Paris, France | |
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| | 10080148 | 08020112 | 16070219 | 10080123 | |
| | Prinsensgata, Kirkegata, Oslo, Norway | D�sseldorf, Germany | Vaison-la-Romaine, Frankrijk/France | Sillgaten, Sm�gen, Sweden | |
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| | Gele brievenbussen. | Yellow letterboxes. | |
| | � Photos/Foto’s: Henk Kuiper | |
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| | Blauwe brievenbussen | Blue letterboxes | |
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| |  |  | | | |
| | 13070312 | 13080612 | | 06080405 | |
| | R�desheim am Rhein, Germany | St. Petersburg, Rusland/Russia | | Coimbra, Portugal | |
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| | Blauwe brievenbussen. | Blue letterboxes. | |
| | � Photos/Foto’s: Henk Kuiper | |
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| | Witte brievenbussen | White letterboxes | |
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| | 11070142 | | | | |
| | “Poste”, Via Eugippo, San Marino | | | | |
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| | Witte brievenbussen. | White letterboxes. | |
| | � Photos/Foto’s: Henk Kuiper | |
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| | Meer brievenbussen | More letterboxes | |
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| |  |  |  |  | |
| | 08070326 | 08070327 | 08070209 | 08070219 | |
| | San Gimignano, Italy | San Gimignano, Italy | Museo dell’Opera del Duomo, Forence, Italy | Piazza G. Matteotti, Siena, Italy | |
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| | 13080324 | | | | |
| | Nida, Litouwen/Lithuania. | | | | |
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| | Meer brievenbussen. | More letterboxes. | |
| | � Photos/Foto’s: Henk Kuiper | |
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| | More photos of letterboxes worldwide | Meer foto’s van brievenbussen wereldwijd | |
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