"What's it worth?" Megan asked. "Unit One. If you sold it."
"Running, tested, sound?" Earl thought about it. "A machine like that, the way it is now, to a farmer who needs a reliable utility tractor and can't afford new? A few thousand dollars, easy. Maybe more, to the right buyer, in the spring."
Ray set his fork down.
"So you've already made back what you paid."
"On one," Earl said. "Out of three that were worth nothing at the auction. And I've still got most of the parts I didn't use out of those three. Plus fifty-seven more tractors in the field." He took a sip of coffee. "But that's not the interesting part."
"What's the interesting part?"
Earl was quiet for a moment. Then he got up from the table, went to the counter where his notebooks sat in a neat stack, and came back with one of the old ones from the attic, its cover water-stained and curled.
"While I was working on the hydraulics from Seven," he said, opening it to a page marked with a strip of paper, "I kept seeing something. I didn't think much of it at first. Then I went out to the field and started looking. And it's there. Again and again."
"What's there?" Ray asked.
Earl turned the notebook around so they could see. On the page, in his younger handwriting, was a sketch of a hydraulic control valve assembly, with a part number written underneath and a note: *Discontinued. No replacement from factory. Hard to find.*
"This," he said.
The hydraulic control assembly was not much to look at. It was a block of cast and machined metal about the size of a loaf of bread, with a row of control spools along one side, a cluster of ports along another, and a mounting flange that bolted it to the tractor's frame beneath the operator's platform. It was the part that took the pressure from the pump and sent it where the operator wanted it to go: to the lift arms, the loader, the rear remotes, whatever implement was hitched behind. Without it, a tractor's hydraulic system was just a pump pushing fluid in a circle.
For about twelve years, the manufacturer had used the same basic design across two of the largest model families on Earl's chart. Then it had stopped making it. The later tractors switched to a different design. The factory had made replacement assemblies for a while, then stopped that too. Dealers had sold off what they had. Salvage yards had stripped the old machines and sold those. And year by year, as the supply dried up, the assemblies that were left became harder to find, and the farmers whose tractors depended on them found themselves in a quiet kind of trouble.
"When one of these fails," Earl explained, "you've got three choices. You find a used one, if you can, and hope it's good. You try to rebuild yours, if you can get the internal parts, which mostly you can't anymore. Or you retrofit something else, which means new lines, new brackets, new controls, and a lot of money. Most farmers with an old tractor won't spend that. They'll park it."
"And you've got how many?" Megan asked.
Earl turned to a fresh page in the auction notebook. He had been out in the field every evening since the first test run, flashlight in hand, crawling under platforms and reading tags.