In reading the threads of late on grinding and obtaining surface grinders, I began to have some questions. In the days before surface grinders were around, how were "ground" surfaces achieved? My immediate thoughts were draw filing and the final finishing with a lapping plate, or possibly scraping. I'm certain that I've overlooked something very obvious though.
Can anyone (Hey Forrest) provide a historical perspective on this? I've got way more time to do it the old way than I do space or money for a surface grinder.