| Title | Wm. T. Shannon & Son. Envelope |
| Genre | Envelopes |
| Form | printed ephemera |
| Call Number | ave_biggert_01502 |
| Date | 1884 |
| DOI | 10.7916/D88W4RGC |
| Companies | Wm. T. Shannon & Son |
| Collector | Biggert, Robert |
| Current Location | Avery Architectural & Fine Arts Library, Columbia University |
| IIIF Manifest |  |
| Locations | Pittsburgh, Pennsylvania, United Statesadd_location |