No.	Title	Date
261	1971-02-05 Hourglass
262	1971-02-19 Hourglass
263	1971-03-05 Hourglass
264	1971-03-29 Hourglass
265	1971-05-07 Hourglass
266	1971-09-17 Hourglass
267	1971-10-08 Hourglass
268	1971-10-29 Hourglass
269	1971-11-19 Hourglass
270	1971-12-10 Hourglass
271	1972 Changes
272	1972-01-28 Hourglass
273	1972-02-18 Hourglass
274	1972-03-10 Hourglass
275	1972-03-17 Hourglass
276	1972-03-27 Hourglass
277	1972-05-03 Hourglass
278	1972-09-25 Hourglass
279	1972-10-16 Hourglass
280	1972-11-06 Hourglass