A blind plate for use in Busch Jaeger Future Linear series armatures.
The blind plate has a support that you can use when the wall insert is not available.
Used this myself as a base which I added 5 speaker connections to.
Lay flat on the print surface, flush side down.
Add 1x M3 bolt to connect the blindplate to the support.
The original in the center spot, the printed in the far right spot.