Center cap back for the Classic RS rims.
You need the center cap head to use this.
Center cap heads for this back: VTKMCROSS1
https://www.tyrelia.com/emblem54mmstraight-calssic-rs-15-16-p-54491.html
885 is an independent rim producer which has no ownership-related, operation-related or any other kind of connection to BBS GmbH.