Keywords: Imbrex Tegula PD.gif a tegula and b imbrex roofing tiles used in Ancient Greece and Rome Smith William Tegula A Dictionary of Greek and Roman Antiquities John Murray London 1875 woodcut scanned from public domain text 1875 author public domain Source document http //penelope uchicago edu/Thayer/E/Roman/Texts/secondary/SMIGRA /Tegula html Source image http //penelope uchicago edu/Thayer/Images/Gazetteer/Periods/Roman/Topics/Architecture/Elements/tiles/2 gif Licensing notice http //penelope uchicago edu/Thayer/E/HELP/Copyright/home html Images created by others include 1 or 2 asterisks right before the final jpg or gif of their URL 1 asterisk the image is in the public domain 2 asterisks the image is copyright and reproduced by permission PD-old Tiled roofs Ancient Roman architecture Roof tiles |