Rare Guess Jeans USA Shirt Blouse Ladies Sz Small Mod Throwback Retro Vintage?

Guess Jeans USA - I have searched the internet for another and cannot find one, it might be vintage or just a vintage throwback - Content tag has been removed, feels like stretch poly - Long sleeves - Button Cuff - Button down front - Exaggerated pointed collar - Size small ladies - Print is of octagons and circles in a mint green and light blue, background of top is white * Really neat find, I have checked over it a few times and see no stains, holes, tares, rips, snags or discoloration, would consider it Excellent used condition - possibly new without tags