Wasn't there a link here at one time that took us to a page where we could type in the numbers on our union labels see a date, vendor, etc? Please say yes... LOL xoxoxo leisa
Here's the union label cheat sheet http://www.vintagefashionguild.org/qt_labels.html But were you meaning RN numbers? there is a site that you can type those in, but it usually only gives you when the importer renewed their license and doesn't always tell you a whole lot..
