[Milsurplus] Mounting plates.

[telegrapher at att.net]

I found a couple mounting plates in a bag out in the shed this PM.  They are:

FT-228A/7083
MT-4/ARR-2

and another plate that looks like it's the back plate from a control head.   Has no numbers on it but8 studs where screws would be used to secure the box along with the slide snap at the bottom for locking into the mounting back plate.  Measures 4 1/8" wide and 3 " high.  Don't have any idea of what control head it might go to but stamped on the back in Orange ink is 22 ARC inside a triangle.  ideas?

Of the FT-228 units i have a total of 6.

Thoughts?

Larry
W0OGH