Date (happened)
between 26 February 1972 and 26 April 1972
Passage 555806 schedules the first operation 'on the twenty-sixth' of the current month.
Told / reported
between 19 February 1972 and 25 April 1972
Lecture 2269 has a supported delivery bound of 1972-02-19 through 1972-04-25.