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 Drain cover of H. Wilhemi of Moers Techno Classica 2011 – Ferngas Drain cover of the Haagsche Machinefabriek en IJze… Trottoir-deksel Access cover of Gunters & Meuser Drain cover of the Gebr. Touw Yzergietery Alkmaar Drinkwater Drinkwater en Gemeentegas Gemeentegas 1936 Drain cover of the town of Velsen 1937 drain cover of the town of Velsen Drain cover of the IJzergieterij Prins van Oranje Manhole cover in Sterzing (IT) Drain cover of L.J. Enthoven & Co of 's Hage Drain cover of Landaal of Apeldoorn Water mains cover from 1923 Water mains cover from 1932 Drain with large opening Ferngas Shell covers Cover – Pers-Gas-L Luxfer manhole cover Drain cover of J & I ten Cate of Almelo Gull attacking a drain cover Old drain cover of the Grofsmederij 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