Kerry, this was in excess of forty years ago. Secluded medium size house in the country converted for this special application. Would not be listed in any phone book as a facility I believe. No signage etc.

Function easily guessed a few minutes after enterance. In a pretty run down state externally and internally as well. Hard to remember location with any certainty but a few miles west of Port Hope I think. There was a small chance it may have been a few miles from Bowmanville as well but Port Hope is more likely. I worked both areas.

I sailed out of port hope at the time. I know you have a fair knowledge of the geography.