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There are 3114 manhole covers that belong to category Unknown: Show on map Thumbnails mode
3051 Cascais - Cover with a background of squares
3052 Cascais - a cover with a background of squares made up of lines and diamonds
3053 Caen - Concrete cover crossed by metal strips
3054 Caen - Concrete cover crossed by metal strips (2)
3055 Cascais - Manhole cover made by Fundição de Oeiras
3056 New York - Brooklyn - Lid made by B.C.GREEN
3057 Vernazza - Cover with a background featuring rows of diamonds
3058 Akrotiri - XTREME CASTING lid
3059 Daratsos - a square lid with a background of squares (2)
3060 Galatas - Cover with a background featuring a classical Greek pattern
3061 Porches - Vilalara
3062 Venice - Inspection pit
3063 Cascais -Manhole cover with a background of diamonds
3064 Cascais - cover with checkered background - 2009
3065 London - LEB Inspection Hatch
3066 London - A Haywards lid whose transparent parts have been replaced with metal
3067 London - glass and metal (9)
3068 London - Lid made by Mather & Smith
3069 London - Concrete cover with an asymmetrical metal frame
3070 London - Round cover with a background of diamonds surrounded by a similar round frame
3071 Cambridge - cover with the text "University" on it - Modular
3072 Cambridge – a cover with a background of parallel dashed lines
3073 Cambridge - lid made by Dent and Hellyer (2)
3074 Cambridge - Brickley Dudley - Round
3075 La Celle (Var) - Lid with a background typical of the FBM manufacturer
Av. Dom Carlos I 212, 2750-310 Cascais, Portugal
Av. Dom Carlos I 248, 2750-502 Cascais, Portugal
2 Rue Montoir Poissonnerie, 14000 Caen, France
6 Rue Montoir Poissonnerie, 14000 Caen, France
Alameda Combatentes da Grande Guerra 50, 2750-282 Cascais, Portugal
322 Atlantic Ave, Brooklyn, NY 11201, USA
Piazza Guglielmo Marconi, 27, 19018 Vernazza SP, Italy
Folli Follie Store, Daskalogiannis Airport, Akrotiri 731 00, Greece
PEO Kissamou Chanion, Daratsos 731 00, Greece
PEO Kissamou Chanion 142, Galatas 731 00, Greece
3JXC+P2, 8400-450 Porches, Portugal
Calesele, 1449, 30121 Venezia VE, Italy
Marina de Cascais 6, 2750-800 Cascais, Portugal
Marina de Cascais 15, 2750-642 Cascais, Portugal
146 Marylebone Rd, London NW1 5PH, UK
4 Glentworth St, London NW1 5PG, UK
177 Seymour Pl, London W1H 1NU, UK
21 Folgate St, London E1 6BX, UK
24 Cornhill, London EC3V 3ND, UK
31 St Thomas St, London SE1 9BZ, UK
38 Lensfield Rd, Cambridge CB2 1EH, UK
Red Buildings, Cambridge CB2 1QG, UK
26 Trinity St, Cambridge CB2 1TB, UK
Courtyard Building, Cambridge CB2 3ER, UK
18 Rue de l’Allée, 83170 La Celle, France
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