| Title | Trus-Con Laboratories. Letter |
| Genre | Letters (correspondence) |
| Form | correspondence |
| Call Number | ave_biggert_00623 |
| Date | 1917 |
| DOI | 10.7916/D89C88FS |
| Companies | Trus-Con Laboratories |
| Collector | Biggert, Robert |
| Current Location | Avery Architectural & Fine Arts Library, Columbia University |
| IIIF Manifest |  |
| Locations | Detroit, Michigan, United Statesadd_location |