The earlier T-13 was only a single tool bar so it is probably the K410 which could have a double tool bar.
Tool bars on the K410 could be solid or tubular and shanks were also available in rigid style instead of the double coil shank.
Says right in the literature it can be mounted in front of a 4-row planter.
If your cultivator has three rows of shanks, then it's probably a FC series cultivator. I'll add a picture of it as well.