Thank you, Josh. I did find myself sprinting for the books. Haynes says explicitly that the hole goes toward the flywheel. Bacon shows a section through the rods and crank with the oil hole shown in the section and pointing toward the flywheel. I would copy the Bacon drawing and share it, but it is from a copywritten book.
On another aspect of this hole, after a lot of previous discussion, rather than arguing further, I started just accepting that the hole has a serious purpose in lubricating the left cylinder wall. I really can't understand why the left side should need such lubrication more than the right side. On re-reading Haynes and Bacon, both state that the hole is for promoting oil flow to the far end of the crank. This makes much better sense to me in terms of explainable engineering. I have also wondered if the hole prevented bubbles in the oil from pocketing on the left end of the crankshaft and, thus, holding back oil flow.
Gotta go.
Richard L.