Eventually, concerning records “delivered” verses records “marketed”: As far as I know, the delivery factor happened while in the early ’70s and proved this type of problem (and it is any person sufficiently old to recall when which was a hip phrase?) that it had been dropped and verified https://led-zeppelin-platinum-rec75295.blogvivi.com/39555548/the-basic-principles-of-gold-record-awards-for-sale