The vertical rod in the center of the DNA molecule

A while ago I read this tweet by Kindra Crick: ÔÇťOdile Crick, my grandmother, drew the first published diagram of #DNA It was 65 years ago #onthisday, as a diagram in the first of the three papers published in @nature on the structure of DNA. (Watson & Crick, Wilkins et al, Franklin & Gosling) #SciArt …