| Source: Parks Air News, 1933-1949 Location: IL / 629.13 / P252n (oversize box) | |
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| Last Name: | Zimmer |
| First Name: | Herbert |
| Middle Name: | J. |
| Volume: | 6 |
| Issue: | 12 |
| Date of Publication: | February 1939 |
| Page: | 4 |
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