The Len Nasman Modular Instruction Page provides information about the Computer Aided Drafting Module marketed by Hearlihy and Company.

I have created a number of instructional modules for teaching CAD (Computer Aided Design). One such module, CAD Lab 2000, has been marketed by Tech Ed Concepts <www.tecedu.com> and is very popular. A variation of this module is also marketed by Hearlihy.  <www.hearlihy.com>

Here is a copy of a Hearlihy catalog page featuring the Computer Aided Drafting Module.

The Drafting Module is available from Hearlihy & Co. <www.hearlihy.com>