Picked up a couple more Brinly pieces today. Found this SS-500 "Drag Harrow" & DD-500 Disc Harrow on CL about 70 miles from home. The drag harrow is really what I was after as I already have one disc, but they were priced as a unit (cheap)! The harrow is missing one tooth, keeper & wedge & one wedge is broken, I'll find or fix those.
I have three options for the disc; use restore it & show it as a tandem set, sell it or use the blades to make wings for my DD-1000 disc. ~~ Lowell