Hi Myles. I’m assuming you mean that the album has the Facet two tracks pressed on to each side, rather than there are simply two Side 2 labels on the LP. I’ve never noticed that kdr prefix to the catalog amount right before; are you positive it’s not ksd? https://led-zeppelin-platinum-rec98529.kylieblog.com/27171926/the-2-minute-rule-for-led-zeppelin-gold-records