Staff-produced

• Not contracted out, say
• One with common sense bottling hydrogen - to begin with engineer's not outsourced
• Done by its own staffers
• Where some promotions occur
• Like company newsletters
• Not outsourced
• Like many company publications
• Limited to an organization
• Not done externally

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
also in-house , 1955, from in + house .