Gull attacking a drain cover Drain cover of J & I ten Cate of Almelo Luxfer manhole cover Cover – Pers-Gas-L Shell covers Ferngas Drain with large opening Water mains cover from 1932 Water mains cover from 1923 Drain cover of Landaal of Apeldoorn Drain cover of L.J. Enthoven & Co of 's Hage Manhole cover in Sterzing (IT) Old drain cover in Nuremberg, Germany Drain cover of Hercules-Werk, Wetzlar 1902 Manhole cover of Schmid Bros. of Freudenstadt Leipzig – Covers of the distric heating Leipzig – Small cover marked VP Copenhagen – Drain cover Copenhagen – Drain cover Copenhagen – Manhole cover Copenhagen – Ludvigsen & Hermann No. 256 Manhole c… Copenhagen – Manhole cover Former Ferngas Kookt op gas Manhole cover of the N.V. Haagsche Machinefabriek… Amerika Brandput Kookt op gas Kookt op gas en Gaskraan Fibrelite FL90 D400 manhole cover Manhole cover on the Binnenhof in The Hague Drain cover of the Grofsmederij on the Binnenhof Gasfabriek Detail of a manhole cover of the firm J. & I. ten… Manhole cover by the firm J. & I. Ten Cate, using… Elkington Gatic patent no. 47222 Small manhole cover of W. ten Cate & Zn N.V. of Al… Globe manhole cover Drain cover of the N.V. Haagsche Machinefabriek en… Drain cover of W.W. van der Vet of The Hague Manhole cover of Nering Bögel of Weert Drain cover of the Hamers Bros. of Maastricht Manhole cover of Induva Holiday 2009 – Access cover System Stedenmacel Holiday 2009 – 1901 manhole cover of the city of… Holiday 2009 – 1901 manhole cover of the city of… Holiday 2009 – Access cover by Barth of Ludwigsbu… 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 – Pont-a-Mousson Manhole cover in Gap… Holiday 2009 – Detail of a French manhole cover Holiday 2009 – Access cover for the gas lines in G… Drain cover of Bayard of Lyon, France Holiday 2009 – Water access cover in Embrun, Franc… Holiday 2009 – PTT access cover 1937 drain cover of the town of Velsen Drain cover of Heenk of Haarlem Access cover of the electricity company in Aachen,… Uncovered manhole Antwerp Water Works Manhole cover of the Grofsmederij Drain cover of Begieco of Doetinchem Brandkraan Cover of L. Giebels & Co of Haarlem