PH 85-0441 - Arnold O. Beckman with Unidentified Man at Construction Site, undated
File — Box: 56, Folder: 31
Dates
- Creation: undated
Repository Details
Part of the Science History Institute Archives Repository
Contact:
315 Chestnut Street
Philadelphia PA 19106 United States
215.873.8265
215.873.5265 (Fax)
reference@sciencehistory.org
315 Chestnut Street
Philadelphia PA 19106 United States
215.873.8265
215.873.5265 (Fax)
reference@sciencehistory.org