What do the 4 Led Zeppelin symbols mean?

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Tags

1. #emblem
2. #right
3. #choose
4. #plant
5. #personal
6. #jimmy
7. #bonham
8. #member
9. #cover
10. #robert
11. #symbols
12. #jones
13. #zeppelin
14. #sleeve
15. #represent
16. #label
17. #inside