Audiopack Sound Systems Gas Mask Speaker Working US NAVY?? Missing Screw Insert

Description

The speaker works as it should but is missing one of the brass inserts that the battery door screw screws into. You could either find the correct insert or fix that side permanently and remove the other screw completely and pivot the door out of the way when you need to replace the battery. The front tag states NAVSEA which makes me think this was one US Navy but I am unsure of that. See pics for condition.
Please view the photos. The photos are part of the description. Any error or omission on my part is accidental. I stand behind everything I sell. If you have any issues let me know.
Shipping: I try to offer multiple shipping options so you choose what's cheapest or best for you. I have everything set at 4 days handling time but I usually ship the same day or the next day.