Vintage 1978 Electrical Wiring Commercial Mullin and Smith Manual Book Theory This is awesome, hard to find Manual and handbook from the legends Ray Mullins and Robert Smith. They have made revisions since then, but this will give you the old-school techniques! This is complete book and covers code, theory, plans and installation methods, with specifications. This book also has inserts that not all revisions carry. Please see picture for what some of those inserts are. Will ship international. please ask questions. Please look at pictures.