I can tell you, without a doubt, that the original Sears TLS was manufactured by Ricoh. It's the reason I bought mine. I got the Sears model for two reasons.
One, since I lived in a town no where close to a camera store (about sixty miles either way, and I had no car), it was easier to order it from the catalog, plus all the other lenses and accessories at the same time. If I recall, it was also on sale at the time I placed my order, which probably coincided with a changeover to Mamiya as the product source.
Secondly, you could get it in black, with no additional charge. Folks thought I was a pro photographer when I was out and about with the rig, especially when I had a flash attached to a bracket with a coiled PC cord. I had to tell them I was still in high school.
Waiting for the light