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There are 3143 manhole covers that belong to category Unknown: Show on map Thumbnails mode
1901 Warsaw - a round lid with circles of squares and an outer ring in a Greek pattern
1902 Broadway, Worcestershire - Air Tight Inspection Cover
1903 East Olympos - Cover with background of pegs
1904 Thessaloniki - Thessaloniki - cover with text on it
1905 Warsaw - a lid with a pattern consisting of circles of squares
1906 Manchester - a cover with a background of short horizontal and vertical lines
1907 Kajetany - PPT Pyrzyce
1908 Glasgow - Nuneaton cover
1909 Hydra (Hydra) - XTREME CASTING cover
1910 Glasgow - A cover with a background with round bumps
1911 Manchester - modular diagonal cover made by Wrekin
1912 Ivano-Frankivsk - A cover with circles of rhombuses and straight lines
1913 Kastrup - Copenhagen Airport - A cover with a network of circles
1914 Copenhagen - A cover with many circles composed of squares
1915 Mexico City - cover with Astra manufacturer logo on it
1916 Warsaw - Lid of type Korum
1917 Warsaw - a lid that is partially covered with concrete (3)
1918 Warsaw - square lid with a background of squares made by KZO
1919 Mount Pearl, NL - Cover made by IMP Castings
1920 Warsaw - a round cover with a background of squares and a symbol in the center
1921 Salford - Round lid made by Thomas Dudley
1922 Warsaw - a cover with a background consisting of striped squares
1923 Copenhagen - a lid with circles in the center from which rays come out
1924 Copenhagen - A cover with a network of circles (2)
1925 Warsaw - Concrete cover with a metal frame, crossed by metal strips and a flower in the center
Gąsek 74a, 02-796 Warszawa, Poland
Peters Farm, Broadway WR12 7LB, UK
2HHF+2C East Olympos, Greece
Proxenou Koromila 42, Thessaloniki 546 22, Greece
Smardzewska 80/86, 04-725 Warszawa, Poland
2 Oxford St, Manchester M1 4PB, UK
Mokra 7, 05-830 Kajetany, Poland
22 Rose St, Glasgow G3 6RB, UK
Ikonomou STR, Idra 180 40, Greece
98 Bath St, Glasgow G2 2EN, UK
135a Oxford Rd, Manchester M1 7DY, UK
Затишна вулиця, 12, Ivano-Frankivs’k, Ivano-Frankivs’ka oblast, Ukraine, 76000
Københavns Lufthavn (Ellehammersvej), 2770 Kastrup, Denmark
Admiralkaj, Toldbodgade, 1253 København, Denmark
Tepic 31A, Roma Sur, Cuauhtémoc, 06760 Ciudad de México, CDMX, Mexico
Szamocka 10B, 01-748 Warszawa, Poland
Aleja Armii Ludowej, 00-638 Warszawa, Poland
Agrykola 9, 00-460 Warszawa, Poland
46 Wellington Crescent, Mount Pearl, NL A1N 2E2, Canada
Aleja Wincentego Witosa 31/lok 3A, 00-710 Warszawa, Poland
3 Crescent, Salford M5 4PF, UK
Agrykoli 1, 00-460 Warszawa, Poland
Admiralkaj, Toldbodgade, 1253 København, Denmark
Nyhavn 1F, 1051 København, Denmark
Piękna 22a, 05-075 Warszawa, Poland
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