1970s Christian Dior Black Pinstripe Men's Suit

This is a black pinstripe Christian Dior suit with a grey lining. Based on style, and label comparisons the suit seems to be from the 1970s. It's a two piece suit, with a jacket and matched set of pants. The suit is in very good condition, no holes or tears, no popped seams or anything fraying out. . The jacket measures 29" from shoulder to hem, with a 24.5" sleeve length. The pants have a 30.5" inseam, with a 37" circumference at the waist of the pants. Washing instructions...