Aaron Lau has a larger Jr Retros range than CSUSA and at a better price. He offers Rollerballs and Foutain pens in Gold Titanium, Black Titanium and Rhodium. As for CSUSA they only have Rollerballs in 10K and Rhodium platings.
With all the different names by different suppliers I will never get it figured out. The Jr. Retro by Craft Supplies looks nothing like the Retro by Woodcraft.