| Source: Mercantile and Manufacturing Scrapbooks, circa 1948-1977 Location: Reading Room / St.L. / 658 / M533 | |
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| Corporate Name: | Pingle Displays Inc. |
| Address: | 7027 Pennsylvania Ave. |
| Volume: | 6 |
| Page: | 168 |
| Remarks: | in article titled "2 Firms Reactivate Old South Side Plant," 1976 |
