WWII Technology!

Working on WWII US Army BD-71 switchboard. I am attempting to connect multiple “old-school” telephone land lines/field phone to the switchboard. The working display will be demonstrated at the upcoming STEAM event at Bladen Community College on Wednesday March 27.

The switchboard is vintage WWII and I have displayed it at Fort Fisher in an non-working state for a couple of years. My biggest issue is getting the WWII field phones operating!