There were several diffrent color adapters for Apple //c produced by Apple:
The adapter is for PAL models for color video output and has composite out as well as RF-out.
This will generate PAL colour (RF) output from NTSC //c. With PAL //c with this adapter will only produce a monochrome picture.
P/N 825-0817-A / 825-0816-A
This is for NTSC model to generate color RF-output.
Le Chat Mauve : //c RVB Peritel
Made in France
This is for PAL models and it have RGB, SCART-connector.
Comparing the models in different angels.
FinApple 2018 (c)
Apple II Forever.