Keywords: Petardsketch1.tif Illustration of a petard from Sketchbook on military art including geometry fortifications artillery mechanics and pyrotechnics Library of Congresshttp //lcweb2 loc gov/cgi-bin/ampage collId rbc3 fileName rbc0001_2003rosen1363page db recNum 185 image 186 of 601 http //catalog loc gov/cgi-bin/Pwebrecon cgi DB local CMD lccn+ 2250032645 22 CNT 10+records+per+page Seventeenth century unknown possibly Italian Partially restored version of File Petardsketch jpg Rotated and cropped Dirt bleedthrough text and stains removed No other changes See also File Petardsketch2 jpg full restoration compressed and File Petardsketch2 tif full restoration uncompressed PD-art Petard |