Holiday 2009 – Access cover by Barth of Ludwigsbu… Holiday 2009 – 1901 manhole cover of the city of… Holiday 2009 – 1901 manhole cover of the city of… Holiday 2009 – Access cover System Stedenmacel Drain cover of the Hamers Bros. of Maastricht Drain cover of the N.V. Haagsche Machinefabriek en… Manhole cover of Nering Bögel of Weert Old drain cover of the Grofsmederij Small manhole cover of W. ten Cate & Zn N.V. of Al… Manhole cover by the firm J. & I. Ten Cate, using… Elkington Gatic patent no. 47222 Detail of a manhole cover of the firm J. & I. ten… Globe manhole cover Luxfer manhole cover Drain cover of J & I ten Cate of Almelo Gull attacking a drain cover Cover – Pers-Gas-L Shell covers Ferngas Drain cover of L.J. Enthoven & Co of 's Hage Drain cover of Landaal of Apeldoorn Drain with large opening Water mains cover from 1932 Water mains cover from 1923 Manhole cover in Sterzing (IT) Drain cover of Hercules-Werk, Wetzlar Leipzig – Small cover marked VP Leipzig – Covers of the distric heating Copenhagen – Manhole cover Copenhagen – Ludvigsen & Hermann No. 256 Manhole c… Copenhagen – Manhole cover Copenhagen – Drain cover Copenhagen – Drain cover Former Ferngas Kookt op gas Manhole cover of the N.V. Haagsche Machinefabriek… Brandput Drain cover of the Grofsmederij on the Binnenhof Manhole cover on the Binnenhof in The Hague Fibrelite FL90 D400 manhole cover Kookt op gas en Gaskraan Kookt op gas Drain cover of H. Wilhemi of Moers Techno Classica 2011 – Ferngas Trottoir-deksel Drain cover of the Haagsche Machinefabriek en IJze… Drain cover of the Gebr. Touw Access cover of Gunters & Meuser Gemeentegas Drinkwater Drinkwater en Gemeentegas Two access covers "DK" 1937 drain cover of the town of Velsen 1936 Drain cover of the town of Velsen Drain Cover of the Grofsmederij Drain Cover of the Grofsmederij Manhole cover of the Ten Cate Bros. Drain cover of Van der Ham & Thierij Mini Manhole Drain cover of B. Ubbink & Co Yzergietery of Doesb… Pre-1914 drain covers of W.W. van der Vet Mini manhole cover Ahlmann-Carlshütte KG of Rendsburg cover Holiday 2009 – Pont-a-Mousson Manhole cover in Gap… Holiday 2009 – Water access cover in Embrun, Franc… Holiday 2009 – PTT access cover in Isola, France Holiday 2009 – Manhole cover of Giordan Frères of… Holiday 2009 – Manhole cover of Pont-a-Mousson in… Holiday 2009 – PTT access cover Drain cover of Bayard of Lyon, France Holiday 2009 – Detail of a French manhole cover Holiday 2009 – Access cover for the gas lines in G… Drain cover of Heenk of Haarlem 1937 drain cover of the town of Velsen Access cover of the electricity company in Aachen,… Manhole cover of the Grofsmederij Antwerp Water Works Uncovered manhole Drain cover of Begieco of Doetinchem Blenheim Palace – A.J. Thompson of New Bond Street Drain cover of C.J. van den Broek of Haarlem Cover of the GEB (Gemeentelijk Electriciteitsbedri… Drain cover of H. van Putten of Haarlem Drain cover of C.J. van den Broek of Haarlem Brandkraan Cover of L. Giebels & Co of Haarlem Cover of the oil company Purfina Drain cover Manhole cover of 1930 Drain cover of 1923 Drain cover of 1931 Drain cover of 1929 Drain cover of 1935 Manhole cover of 1949 TBS manhole cover Drain cover of De Globe Drain cover of H.E. van der Heide of Leiden Drain cover of H.E. van der Heide of Leiden Fire hydrant Manhole cover of Hamers of Alkmaar Small drain cover of the Grofsmederij Small drain cover of the Grofsmederij Drain cover of Th. Thyssen & Zn (Thyssen & Sons) o… Drain cover of the Alkmaarsche IJzer- en Metaalgie… Drain cover of Hamers of Alkmaar Drain cover of the Alkmaarsche IJzer- en Metaalgie… Small manhole cover of W. ten Cate & Sons of Almel… Drain cover made by Globe of Tegelen, customised f… Drain cover for the city of Utrecht Cover for Fina oil access point Milder guage point Drain cover for the city of Utrecht Drain cover of Buderus of The Hague Drain cover of Industrie of Vaassen Chewing gum Drain and manhole covers of TBS Drain and manhole covers of TBS Drain and manhole covers of TBS Drain and manhole covers of TBS Drain and manhole covers of TBS Drain cover of Rey Frères of Brussels in The Hague Drain cover of Julius Pastree of Vienna-Simmering Drain cover of Vogelsinger & Pastree of Vienna-Sim… Drain cover from Roman times STAATSTELEFON