Longsleeve top by yoshiki hishinuma (c. 1990s), made from lightish-mediumish, fairly saturated green cotton-poly jersey. As you'd expect in finish and construction: self-fabric band at the neck, cover-stitched cuffs and hem. In terms of details: round neck, long sleeves, cropped.

No marked size
Check measurements to confirm fit
All measurements taken flat

Shoulder width: 36.5 cm

Width (at underarms): 38.5 cm
Waist width: 36.5 cm
Length (neck to hem): 47 cm
Sleeve length: 57.5 cm
Hem width: 38.5 cm

70% cotton 30% polyester
Made in japan
Circa 1990s