Marshall's CAD Drawings,
Created During Burns & Roe Stint

This is a Piping and Instrument Diagram (P&ID) containing modifications to the cooling system of an existing nuclear power plant:

This is part of a portable water purification system for the next generation (yeah, right) of nuclear power plants:

This diagram depicts the transportation equipment that was (actually) used to transport a steam generator from a decommissioned plant near Portland, OR to Hanford, WA: