Hello Tim:
Ward Harris was a famous Edison collector. He was a Edison Mimeograph dealer in San Francisco from the late 20's. He collected the full range of Edison items - phonograph, battery, lighting, power, toasters, cement bags, you name it. His collection was huge - in the vicinity of 50,000 items. Upon his death in the mid 50's his collection was dispersed with much of it going to various museums. Over the years some of this material has been "liberated". He also had several travelling Edison exhibits so the provenance on your bulb is accurate.
[This message has been edited by Chip Crider (edited January 24, 2003).]