The Golden Age of Classic Menswear (1930s)
The 1930s were characterized by a suit that had a heavy drape cut with a wide shoulder, a lot of waist suppression, high-rise trousers that were just cut very full and just tapered slightly towards the shoes.

ah yes, from my family history...!
https://www.gentlemansgazette.com/evolution-of-menswear-suits/