Mumbly
11 appearances on record
| Source | Claim | |
|---|---|---|
| This record Cover | The Flintstones #1 | 1977-10 |
Two records, shown side by side. A dispute is information, not an error.
| Issue | Date |
|---|---|
| Action Comics #15 | 1939-08 |
| Action Comics #16 | 1939-09 |
| Action Comics #17 | 1939-10 |
| Action Comics #18 | 1939-11 |
| Action Comics #19 | 1939-12 |
| Action Comics #20 | 1940-01 |
| Action Comics #21 | 1940-02 |
| Action Comics #23 | 1940-04 |
| Action Comics #24 | 1940-05 |
| Action Comics #25 | 1940-06 |
| Action Comics 23 (Facsimile Edition) #[nn] | 2025-10 |
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