28 JUNE 1986, Page 26

Post mortem

Sir: 'The main effort of Post Office invest- ment goes on behind the scenes in the handling and sorting of mail' (City and Suburban, 7 June).

If regularity of delivery is a main test of efficiency in handling and sorting, the investment doesn't seem to have been justified. The intervals in days between airmail deliveries of my copy of the Specta- tor since January have been: 6, 12, 1, 8, 10, 2, 9, 5, 4, 9, 7, 7, 8, 8, 4, 11, 3, 11. Brian Smith

5400 32nd Avenue N, St Petersburg, Florida