+- [[https://commons.wikimedia.org/wiki/File:ISO_10628-2_2012_Symbols.pdf][BK-2020-04-PID-1]]: Chemical engineering symbols ([[https://en.wikipedia.org/wiki/ISO_10628][ISO 10628]]-2:2012 Symbols)
+- [[https://commons.wikimedia.org/wiki/File:Technical_drawing_templates_(ISO_5457_1999_Sizes_A0-A4).pdf][BK-2020-04-TMP-1]]: Technical drawing templates (ISO 5457:1999 Sizes A0—A4)
+
+** Contents
+*** Directories
+- ~DEL~: Deliverables. A directory that may include plain SVG files
+ and exported PDF files. *This is probably what you want*.
+- ~DWG~: Drawing source files. A directory that may include [[https://inkscape.org/][Inkscape]]
+ SVG files.
+- ~EXEC~: Executable files. A directory that may include scripts
+ useful for manipulating files.
+- ~IMG~: Reference image files. A directory that may include various
+ image files used in creation of project source files.
+*** Files
+- ~README.org~: This file.
+- ~REVISIONS.org~: A file containing a detailed version history of
+ each drawing.
+- ~TODO.org~: A file containing a list of pending tasks for the
+ project.