I finally got around to digging the mic out of my storage room, but my memory isn't quite as good as it used to be. The mic isn't completely chrome - it has a black neck. Anyway, here are a few pics that show the difference between it and a silver/night k eagle:
This is a pic of the board in my silver k eagle:
Here's a pic of the board in the d104 with a single tone roger beep:
Here's a close up of it - I accidently reversed the order of the vox and 20db pad positions when I put it on the pic:
And here's a close up of the top side of the board showing the roger beep module:
Here's pics of the front and back of the mic:
I got this mic several years ago when I purchased a radio from one of the locals. I have only seen a couple others (on FeePay) that have the single tone roger beep. Since you have never seen one in 37 years then they must uncommon?