1967 Dart OE Manual Brakes, Brass Adapters on Master Cyl

I have been told by an old timer that the brass adapters are OE for manual brake with front KH disk and rear 10 x 1 3/4 drum. I cant recall a time they weren't on the car, but after 51 years who knows.

What is the consensuses here?20180310_202411.jpg