Pencil Drafting. Yes, it's been a while. I do almost everything with CAD now.
You can view a larger JPG image by clicking on the thumbnails. If you wish to see a larger PDF version, click on the PDF link instead.
 

dongiogp.pdf

dongiosection.pdf

 

riteospringgp.pdf

riteospringsection.pdf

   
 CAD work. These three files were done in AutoCAD. I've created three options for viewing. Click on the image for a larger JPG version. Or, you can click on the text links for either a large PDF or the actual CAD .DWG file itself.
 
 

manoflamancha.pdf         manoflamancha.dwg

 Stairs.pdf                                   Stairs.dwg

  
 

windmill.pdf                             windmill.dwg

 
   
 Vectorworks examples. These two happen to be light plots.