I once saw a demonstration of a Curta mechanical calculator used in road rallying. Very impressive stuff but not as impressive as the story of its creation.

Talking of hoarding, I had a long since deceased family member who would keep hold of objects as they might come in handy one day. When we cleared his house, we found an ex Army Lee Enfield rifle and a Colt 45 pistol. Presumably left over from the war.

Arwyn