Threshing, which is separating a grain from its plant, is an essential task of farming. These days, it’s done by big machines, which work over the world’s fields to harvest every grain they can get. 

And at a farm in Canada, recently, dozens of farmers gathered to break what they said is a world record: 139 threshers, simultaneously threshing, according to Farms.com. 

The threshers were mostly antiques. They gathered in a field in Austin, Manitoba, about 80 miles west of Winnipeg, and threshed 75 acres of wheat, which amounted to 30,000 sheaves. Funds raised during the event will go to charity. 

The record isn’t official yet because Guinness World Records has not certified it. But that isn’t stopping the farmers from celebrating. The previous record for simultaneous threshing featured 111 threshers.

“This was a once-in-a-lifetime event,” Elliot Sims, an organizer, said, according to Farms.com. “You just don’t see stuff like this anymore.”