Part on the right does not look like a Dillon part to me, but might be to help hold a casefeeder?
Bracket on the left bolts to the right side of a strongmount ( as you are facing the machine to pull the lever). Holds your bin of brass on the front, and the bin of finished ammo on the right side of the machine.
Thanks Jet Lagged. As you know, you are correct. It’s part of pn 11185. By the looks of things the previous owner Rigged the bracket to work on a bench wo a strong mount. I will he scrapping it as it will not work with the inline fabrication mount.