Just picked up this really cool John Smedley polo, made expressly for BERK. Does anyone know whether the BERK name adds any extra value/collectability, and roughly what era this label is from? Google Lens is suggesting 70s/80s, but I'm not convinced as condition looks to good for that era. I've searched eBay and can't find another John Smedley/Berk example with the same label. Any info would be appreciated. Thanks!