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There are 3114 manhole covers that belong to category Unknown: Show on map Thumbnails mode
2426 Paris - a concrete cover with a matrix of transparent circles
2427 Paris - round lid with lifting axis - type MAESTRO 800
2428 Paris - Circles of geometric shapes (3)
2429 London - PAm INTER-AX - rectangular, diagonal
2430 Boston - TCB
2431 Hydra (Hydra) - Lid made by the Maniedakis brothers
2432 Ermionida - cover with a background of rhombuses and squares
2433 Tallinn - PLASTKAEVUTEHAS
2434 Athens - EEY (2)
2435 Tallinn - a round lid with a background of squares and a ring around it
2436 Tallinn - cover with a background of small squares
2437 Athens - Round lid with arrowhead background
2438 Tallinn - a lid manufactured by Pärnu machine factory (2)
2439 Athens - EYDAP manhole cover
2440 Helsinki - AQUATOP
2441 Athens - Municipality of Athens - 1937
2442 Athens - lid with logo in the center
2443 Helsinki - 450 years since the founding of the city
2444 Helsinki - Suomenlinna - small round lid
2445 Helsinki - Suomenlinna - FCI
2446 London - a lid with circles of squares intersected by diagonals
2447 St. John’s, NL - A lid with a background consisting of hexagons
2448 St. John’s, NL - Confined Space (6)
2449 Warsaw - round lid with a background of hexagons
2450 Venice - a "chameleon" cover with the letters FN on it
1 Rue Cambon, 75001 Paris, France
8 Rue Jean de Beauvais, 75005 Paris, France
9972 Pl. du Châtelet, 75001 Paris, France
100 Minories, London EC3N 1JY, UK
60 Pier 4 Blvd., Boston, MA 02210, USA
Tompazi 1, Idra 180 40, Greece
Οdos xoris onomasia, Ermionida 213 00, Greece
Raekoja plats 11, 10146 Tallinn, Estonia
Ploutarchou 18, Athina 106 75, Greece
Toom-Kooli 4, 10130 Tallinn, Estonia
Lootsi 13, 10151 Tallinn, Estonia
Loukianou 39, Athina 106 75, Greece
Raekoja plats 1, 10146 Tallinn, Estonia
Loukianou 33, Athina 106 75, Greece
Porthania, 00100 Helsinki, Finland
Spefsippou 27, Athina 106 76, Greece
Ploutarchou 18, Athina 106 76, Greece
Unioninkatu 23, 00170 Helsinki, Finland
Suomenlinna C 18, 00190 Helsinki, Finland
Elielinaukio 5, 00100 Helsinki, Finland
173 Tower Bridge Rd, London SE1 2AW, UK
89 Portugal Cove Rd, St. John’s, NL A1B 2M8, Canada
290 Water St, St. John’s, NL A1C 1B8, Canada
Polinezyjska 3, 02-777 Warszawa, Poland
C.S. Gregorio, 172, 30123 Venezia VE, Italy
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