David-
I think that's the plan! I pulled the oiler and sure enough I can see inside and there is a notch. I'll find a bolt to thread in and should be able to loosen the cranks.
Do you think the chainring is correct? If so, ever see a catalog with it? It looks out of place to me, and fairly thin compared to other sprockets from the period, but fit the cranks, and is nickel plated. Thoughts?
Thanks,
Scott