Travis--i'm in the process of rebuilding a 13-2 cultivator. For some reason I can't post pics at the moment but I will start a separate thread on it when I can. Many of my started threads have to do with rebuilding old equipment that was quality to begin with. This Dearborn cultivator was made of great steel and after all these years most of the parts come apart with no problem. I Just put the shanks back where they should be, undo the dumb stuff others did, add new shovels and some factory Ford Red Rouge paint. Never saw a decal on one of these, only a metal plate indicating maker, model and serial number. Here's a PDF of the 13-2 Dearborn owner's manual. Oops, I can't add it so here is a link to the 13-2 manual as well as links to almost everything old and Ford from the Golden Years. 527 PDF's and I forgot where I got it. I don't know where to get a nameplate.
NTC Manual Library In searching, if you happen to run across the cultivator sweep angle, let me know. It could be 54 degrees but I think was 47 degrees. You should see the truckloads of old equipment going to Mexico. They back haul planters and things from Texas and wherever. One load was 100% full of these old cultivators. I don't know how many but the truck was stacked by pros and not an inch of space was wasted. So maybe 50 or 75? as a guess. Maybe 100?