SATIN BRASS (SB)
This satin look is achieved by hand sateening the finish after polishing. It is protected with the same high performance lacquer as the polished brass finish.
In the USA this is finish code US4.

SATIN BRASS - UNLACQUERED (SBUL)
As with unlacquered polished brass, this is a natural finish protected with a wax coating and can either be regularly polished to retain it's sheen or left to age gracefully as the brass oxidizes.
In the USA this is finish code US4A.