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 Oxford – Drain of Cowley of Oxford Oxford – Oxford water FP Oxford – Post Office Telephones Oxford – Electricity supply Oxford – Manhole cover of Broads of London Drain cover of the Gebr. Kruijt Gas access cover Ferngas Flag stand made by Hermai n Wilhelmi Water mains access cover Drain cover of the Grofsmederij Manhole cover of C.J. van den Broek of Haarlem L gas access cover Manhole cover Drain cover of Wildkamp of Lutten Manhole cover "G S" Drain cover of the Gemeente Hillegom Drain cover of Heenk of Haarlem Drain cover V.L.K. Drain cover of C.J. v d Broek of Haarlem Cover for the Kadaster Drain cover of the „Overyselsche” in Santpoort Drain cover of the „Overyselsche” in Santpoort Drain cover of NL VN Ymuiden Stores in Santpoort Drain cover of Kamphuis of Zwolle Drain cover of the Grofsmederij of Leiden Gas valve access cover Open Monumentendag 2011 – Meelfabriek – Drain cove… Brandkraan RT access cover TBS manhole cover with holes KB access cover Bopp & Reuther fire hydrant Bopp & Reuther fire hydrant V.L.K. manhole cover G.E.B. Gas access cover Access cover in the shape of a fish PWN access cover Manhole cover of the Rijkstelefoon Dubai 2012 – Stanton & Staveley drain cover Dubai 2012 – Drain cover for storm water France 2012 – Gaz cover of Victor Heinrich of Mols… France 2012 – Gaz access cover 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 Brandput Manhole cover of the N.V. Haagsche Machinefabriek… Kookt op gas Former Ferngas Copenhagen – Drain cover Copenhagen – Drain cover Copenhagen – Manhole cover Copenhagen – Ludvigsen & Hermann No. 256 Manhole c… Copenhagen – Manhole cover Leipzig – Covers of the distric heating Leipzig – Small cover marked VP Drain cover of Hercules-Werk, Wetzlar Manhole cover in Sterzing (IT) Water mains cover from 1923 Water mains cover from 1932 Drain with large opening Drain cover of Landaal of Apeldoorn Drain cover of L.J. Enthoven & Co of 's Hage Ferngas Shell covers Cover – Pers-Gas-L Gull attacking a drain cover Drain cover of J & I ten Cate of Almelo Luxfer manhole cover Globe manhole cover Detail of a manhole cover of the firm J. & I. ten… Elkington Gatic patent no. 47222 Manhole cover by the firm J. & I. Ten Cate, using… Small manhole cover of W. ten Cate & Zn N.V. of Al… Old drain cover of the Grofsmederij Manhole cover of Nering Bögel of Weert Drain cover of the N.V. Haagsche Machinefabriek en… Drain cover of the Hamers Bros. of Maastricht 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… Blenheim Palace – Tuke & Bell manhole 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…