Girl Scouts Uniform Button Down Vintage Shirt size 11/12

Official/Authentic Girl Scouts Uniform Shirt. Likely vintage—I think from the 1990s*. White button down long sleeve with green and blue pinstripes. Girls size 11/12. Straight hem. 60% cotton/40% poly. (Actual colors better seen in close up shots) Very good condition. One very light stain on the left cuff and one very small dirt stain on the back of the left sleeve, both as pictured. Neither are very noticeable and possibly can be taken out. But otherwise looks unworn. Probably could fit as an XS for an adult. *If anyone knows which era this is from, please let me know!