From Goldman Sachs. 100% Authentic. Very rare vest, quilted and from Brooks Brothers.
70s Brooks Brothers Brooksgate 2 Piece Suit (34R 28×28) 3/2 Roll Flannel Wool
70s Brooks Brothers Brooksgate 2 Piece Suit 3/2 Roll Single Vent Flat Front. Estimated 34R. Estimated 28×28. Discrepancies from manufacturer labels described as above. Material: None. Assuming 100% given historical context.