Rare book Microphones design and application 1974 lou burroughs 1st edition

This book by Lou Burroughs : Microphones : Design and Application is the first edition from 1974. It has the original dust jacket although it is quite chippy. Original owners name stamped in blank end page. Otherwise very clean and in good sound condition. I am also including Microphone primer booklet from Electro-Voice (undated but appears contemporary to the book) Thanks for looking …please check out my closet for lots of collectible books! Thanks for looking!