This is a very interesting Ben Zuckerman suit, in black pony hair. The jacket is double breasted and the skirt is a typical straight Zuckerman.
Pony hair is cow or goat hide that is shaved so that the hide looks similar to the hide of a horse. It is an unusual choice for a suit but it works very well and is easily tailored.
Photos courtesy of Lori's Listings NY.

Dating from the mid 1950's, this coat is a delight!

Made of a pale coloured wool, it reaches just below the knees and has 3/4 length sleeves. It is single breasted and the wool is woven into 'stripes' which serve to elongate the figure.

This gorgeous Ben Zuckerman coat, dating from the early 1960's is beautifully tailored and very flattering. The coat has large lapels and collar, 3/4 length sleeves and an empire style waistline. This coat would have been perfect for wearing during the day.

The coat was made with material from Anglo Mills, who produced very high quality fabrics. Sadly Anglo Mills closed in 1998 and the derelict factory burnt to the ground some time after that.

This is a photograph of a window display, dating from 1957, in Bonwit Teller's flagship New York Store, featuring women's suit by Ben Zuckerman. The mannequin is wearing a hat, gloves, jewelry and holding an umbrella.  A banner at the bottom of the display reads "Bonwit's suits inspired purists lines designer news by Christian Dior."