Greetings! So I've come across a gorgeous vintage long crochet-lace skirt. It is by "Lim's". As you can see from the tag, it was made in Shanghai. Does anyone have any knowledge about this label? How to date the piece? I realize that anything made in China is a red flag, but I'm certain this is a vintage piece, as the yellowing of the cotton and the style of the label would suggest so. Any information on dating Chinese-made items would also be much appreciated.