Hey Jim:
this is what I was responding to about circular sawn stuff that was re-sawn vertically (or vice-versa). Perhaps I misunderstood:
Hi
Something to keep in mind is that the circular saw needed more power (more water) so they were not an option everywere. Also, smaller circular saws were used to resaw flitches, deals, etc. even in mills with vertical saws so look for old lumber with the narrow dimension circular sawn and the wide dimension vertically sawn.
Jim
thanks for the Patten link. It loaded this time. And Leonard's Mills looks neat. A 1790-era mill. They must have an up-and-down saw there! Let us know what you find...