From Vogue, 1966, a plaid suit with 'the smallest jacket'.

This suit jacket is slightly fitted with three quarter length sleeves and scalloped pockets at the waist. You can see the blouse's bow peeking out at the neckline, as well as the same material at the cuffs. The blouse cuffs are probably faux, the blouse is likely sleeveless to reduce bulk under the jacket. This was often done by Chanel and Zuckerman also used this approach on other suits.

The skirt is straight with pockets at the hip.