"D" is for Dynamatic, from Voigtlander
The Dynamatic cameras were manufactured in the early 1960's for the standard 35mm roll film.
The different models of the Dynamatic were distinguished by lens and shutter arrangements as well as the chrome front.

The Dynamatic Deluxe has a chrome front plate and the Prontormat S-V shutter. 1961-1962

You might have seen this camera in Harry Potter and the Chamber of Secrets.
We actually have two Matchmatics. One has a fancy light meter attached. Last year, I put a roll of black and white film through one of the Matchmatics and got some fun photos.