Likely made after '73, but the damage is severe and the inner tab is unreadable. Please refer to the images of the button back and zipper for your judgment. There is considerable damage, so please check the images. For reference, I am 173cm tall and weigh 63kg, and this was a slightly loose, just-right fit for me. 【Size (measured flat)】 Waist: 74cm Rise: 25cm Inseam: 78cm 【Flare Width (measured flat)】 30cm The size is listed as M, but these are amateur measurements, so please confirm all widths and lengths before purchasing. The age, size, and condition are based on my amateur assessment, so please understand that these are used clothes. Model Number: 600 series Model Name: 684 Stains, tears, odors, etc.: Present