Once upon a time in Hollywood - Possible Monarch jacket?

[Corky Corcovado]

While watching Tarantino's latest film, during the Rick Dalton FBI scene which was original footage from the show with Leo superimposed as Burt, I noticed the criminal accomplice was wearing a brown button front half belt which is hi
ghly reminiscent of a Monarch pre-war jacket. The jacket is first seen at about 2 minutes 30 seconds into the linked video:

Also here is a photo of an original sent to me by @Maverickson:

 

[Mandarin]

Good one!