Looking at the ones I have hanging off the back of a chair in the dining room table; blouse: Terry Manufacturing Co, the trousers: Goodwill industries of S Florida. The pair I am taking to the cleaners in the AM; blouse: American Apparel, trousers: Propper International
So they are made by various manufacture, they all come with a lot of IPs, you have to remove the IP after get them and normally after ever washing for the first several washings.