And the Honda 300 motorcycle had a 305 cc engine and even though the Honda folks called it the 300, it became instantly known as the 305...and became a central figure in the book "Zen and the Art of Motorcycle Maintenance."
When learning watchmaking (1957) I was taught to think in metric measurements and the French ligne measurements. Metric is easy as pie. Ligne takes some work...1/12 of a pouce which is 1.066". And the pouce is 1/12 of a pied du roi (the French foot which at 1.066 American feet explains why the French wear slightly larger shoes and stumble occasionally).
