Here is a jacket, by Harry Shacter, the designer who would go on to design for Ben Zuckerman.

This jacket would date to pre 1950, at which time he went to work for BZ.

The jacket falls to mid thigh, and is trimmed with thick black mink fur at the collar and hem. The jacket is princess seamed and has two pockets. The buttons are very decorative, and feature rhinestones.

Photos courtesy of Cabinetofcuriosities