| Title | A. Backus, Jr. & Sons. Letter |
| Genre | Letters (correspondence) |
| Form | correspondence |
| Call Number | ave_biggert_00603 |
| Date | 1880-1889 |
| DOI | 10.7916/D8W96N7G |
| Companies | A. Backus, Jr. & Sons |
| Collector | Biggert, Robert |
| Current Location | Avery Architectural & Fine Arts Library, Columbia University |
| IIIF Manifest |  |
| Locations | Detroit, Michigan, United Statesadd_location |