Lee, thanks for the mention of our website, and if anyone is interested, we have Campbell's application for the Special Agent position posted at the site along with some others.
Unless you have info otherwise, I'm not sure I'd chalk off that FBI badge as a duplicate. In my research of the 30's agents, I have come across the badge of SA Buck Buchanan of that era who passed his badge down to his son. If the Campbell badge is numbered, an FOIA check of his property card (which might still exist) would reveal the number issued.
For FBI and historical issues, I'd love to see what exists on those old films.
You or anyone else can reach me direct at:
[email protected]
By the way, SA George Franklin who you mention has a son who is still alive in resides in Albuquerque, NM and who holds a lot of his dad's memorabilia.
cheers
Larry Wack
Retired FBI