Looking at the picture you posted, yes, your lens should be compatible with the IIIS. The only way to know for sure is to see the back of the lens; those compatible with the IIIS have a rangefinder cam.
Also, another way you can usually know they are compatible, is it is called a Retina-XXXXXX. (Retina-Xenon, Retina-Tele-Arton, etc.) However, the Retina-Tele-Xenar 200mm F4.8 does not have the cam.
Here are a couple of links for you:
The cam can be seen in the rear view pictures posted on this auction (no connection to the seller):
If the lens does not have this cam, it won't rangefinder couple to the IIIS.