How did Iron Maiden come up with Eddie?

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Tags

1. #british
2. #metal
3. #eddie
4. #heavy
5. #illustration
6. #riggs
7. #transferred
8. #mascot
9. #backdrop
10. #debut
11. #which
12. #album
13. #derek
14. #originally
15. #stage
16. #papier
17. #known
18. #cover
19. #maiden