Drain cover of Vulcanus of Doetinchem (NL) Drain cover of Nering Bögel of the pre-1932 period Drain cover of Nering Bögel of the post-1955 perio… Manhole cover of Nering Bögel of the post-1928 per… A open manhole – manhole cover of TBS Drain cover of Heenk IJzerwaren of Haarlem (NL) Manhole cover of the Nederlandse Grofsmederij Cover of the Kadaster (Land Registry) Drain cover of Deltaplast Drain cover of Joosten Kunststoffen Another drain cover of the Overijselsche IJzergiet… Nameless drain cover Drain cover of the Leiden city council 1971 Wijnand Wouter van der Vet drain cover (1897–1914) 1958 drain cover of Vienna 1932 drain cover of Vienna OEWA-WIEN X drain cover of 1930 1929 Arsenal-Wien X drain cover 1902 MWAG no. 535 drain cover Manhole cover from the time of the Kaiser – KK Sta… Drain cover of the Akt.-Ges. Waagner, Biro, Kurz –… Viennese drain covers: An 1896 drain cover Viennese drain covers: H. Egar of Vienna Drain cover of Julius Pastree of Vienna-Simmering Drain cover of Vogelsinger & Pastree of Vienna-Sim… STAATSTELEFON Drain cover from Roman times Old cover consisting of the letter G and W Drain cover of Rey Frères of Brussels in The Hague Chewing gum Drain and manhole covers of TBS Drain and manhole covers of TBS Drain and manhole covers of TBS Drain cover of Overyselsche IJzergieterij of Deven… Drain cover of Polva Pipelife More drain covers: Grofsmederij Leiden More drain covers: Grofsmederij Leiden More drain covers: W. ten Cate en Zn, Almelo More drain covers: P. Konings, Swalmen More drain covers: Trip More drain covers: Gemeente Leiden 1967 Drain cover of the Koninklijke Nederlandse Grofsme… Drain cover Drain cover of the Koninklijke Nederlandse Grofsme… Dijka of Steenwijk Sewer cover of the Koninklijke Nederlandse Grofsme… Sewer cover of the Koninklijke Nederlandse Grofsme… Sewer cover of B. Ubbink & Co Yzergietery of Doesb… Manhole cover Manhole cover Gebruik Touw New, unconnected sewer cover Some details from Leiden Sewer cover by G.J. v.d. Broek of Haarlem Sewer cover of the Kon. Nederlandse Grofsmederij Stedelijke Gasfabriek (City Gas Works) Manhole cover Cambridge: F. Burwick, Sanitary Engineer Cambridge: Hayward's Patent Self Locking iron cove… G.P.O. Cambridge: Manhole cover Montreal images: Bell Canada Portland images: Northwestern Steam Electric Co. Portland water