File:Bitumen.jpg

English Natural formed bitumen Wikimedia username: דניאל צבי URL: https://commons.wikimedia.org/wiki/user:%D7%93%D7%A0%D7%99%D7%90%D7%9C_%D7%A6%D7%91%D7%99

I, the copyright holder of this work, hereby publish it under the following license: English white painted, clean, bitumen road, seamless texture

Flugfeld des Fliegerhorst Celle-Wietzenbruch wird zwei Spaten tief mit Bitumen vermischt |Quelle = Chronik des Heeresfliegerregiment 16 und der Immelmann-Kaserne

Commons Attribution-Share Alike 2.0 Generic license. Attribution: Rippled bitumen by Neil Owen You are free: to share – to copy, distribute and transmit

English Cuneiform tablet: account text concerning bitumen, Quradum archive (MET, 86.11.134) determination method or standard: SHA-1