🧡1970's Embroidered Mexican top

Unique, colorfully embroidered top with awesome looped buttons and dagger collar. Cotton muslin. A grayish blemish on top of left sleeve and back of right sleeve near elbow. To me, it wouldn't be a big deal, especially for a cool vintage piece. Unfortunately, I outgrew this about 45 years ago. Purchased in Mexico somewhere between 1971 and 1974.