Hi Myles. I’m assuming you mean that the album has the Facet 2 tracks pressed onto each side, and never there are only two Side 2 labels to the LP. I’ve hardly ever observed that kdr prefix around the catalog quantity before; are you currently positive it’s not ksd? https://goldrecordoutlet.com/?orderby=popularity&paged=1&s=Led+Zeppelin&post_type=product&dgwt_wcas=1