| Title | Heeren Bros. & Co.. Envelope |
| Genre | Envelopes |
| Form | printed ephemera |
| Call Number | ave_biggert_01469 |
| Date | 1894 |
| DOI | 10.7916/D8JM3NTZ |
| Companies | Heeren Bros. & Co. |
| Collector | Biggert, Robert |
| Current Location | Avery Architectural & Fine Arts Library, Columbia University |
| IIIF Manifest |  |
| Locations | Pittsburgh, Pennsylvania, United Statesadd_location |