WHAT DOES LED ZEPPELIN GOLD RECORDS MEAN?

"It was 4 of us, but i don’t Imagine it had been as Led Zeppelin as it'd've been," Plant explained of Zeppelin's eighth and last studio album. Tax complications forced them to decamp to Sweden, wherever they recorded at Abba's Polar Studios.Once upon a time a really very long time ago (I feel it had been 1971) I purchased the album