“Led Zeppelin lll” was the third album for the band and featured more folk rock and acoustic renditions. The “Immigrant Song” is the best known track. That 45 is not worth much more than $15.00 but the “Led Zeppelin III” album is collectible. The album features a movable wheel behind the front cover with more images than those on the front. Released on Atlantic Records in 1970, a copy can get you $300.00 today.