Martin Scharlemann photos
![](https://celebratio.org/media/photo/pgroup_55/PosterTSKD34.jpg.800x800_q85.jpg)
Photo courtesy of the conference organizers.
The poster for the 60-70-80 conference honoring Abby Thompson, Marty Scharlemann and Rob Kirby: "Topology in Dimensions 3, 3.5 and 4", June 25--29, 2018, University of Caifornia, Berkeley.