Sir – The History Man, Chris Koenig, in his description of The Queen’s College Needle and Thread (aiguilles et fils) dinner (January 2), did not have space to tell us about the different coloured threads.

The bursar would hand out needles with black thread to the theologians, blue for the lawyers and medical graduates and red for artists.

This is still done to a limited extent. On one occasion in the 1970s I was only one of two women at this ceremony.

We noticed afterwards that all the men had put their needles in their right-hand lapels. We two women, used to sewing, had put ours on the left side of our dresses.

Ann Spokes Symonds, Oxford