Found this antique broadcast seeder hanging on a nail in the drive shed, the Cyclone Seed Sower, made in Urbana, Indiana, sometime way back when (patented 1925). The canvas is torn, but it’s otherwise in good working order. Dunno exactly when it was last used, in the last decade or two. With a little patching—in a hurry, even duct tape would work—and a few drops of oil, it’d be good to go. In this case, time hasn’t improved on design: this seeder is essentially identical to the modern version I use, except the cloth and wood and most of the metal have been replaced by plastic. Operation is simple: fill the bag with seed, adjust the size of the opening, and start walking while cranking the handle—seed hits the plate and gets flung out by the ribs (here’s a more detailed description). Simple, then and now!