The microphone on David Letterman's desk on Late Night was a vintage RCA DX-77 ribbon microphone and was there in case his lapel mic failed.
But also because it looked neat....
![](https://kbin.life/media/cache/resolve/entry_thumb/d8/88/d88850a28a832811c9577c08f91030f4455badd217bd090ff5503816282f85bf.png)
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But also because it looked neat....