Hi Breck, Looks like a handset or headset/microphone interface between a plug-in cable for some piece of gear and individual mic and phones?

73, Howie WB2AWQ

Sent from Mail for Windows

From: B. Smith
Sent: Monday, October 18, 2021 5:24 PM
To: Milsurplus
Cc: Military Radio Collectors Association
Subject: [Milsurplus] Mystery Project

Mystery Project.
k4che