From Wiktionary, the free dictionary
prop master (plural prop masters)
- (film, theater) Short for property master.
2022 May 4, Gina Cherelus, “The Stories Behind Some of the Weird Stuff on ‘Severance’”, in The New York Times[1], →ISSN:“We’re doing our job if you don’t notice it,” Catherine Miller, the prop master for the series, said in a phone interview last week.