Until I went past this old building in Regent St, Chippendale, which was being gutted, I had never heard of Co-Freemasonry. It turns out it is a form of Freemasonry admitting both men and women, and so not recognised by most Orders and Grand Lodges. Apparently it originated in France in the late nineteenth century, during a period of strong feminist and women's suffrage campaigning. Co-founders were a Senator, Dr Georges Martin, and a feminist author and politician, Maria Deraismes. Given that the building is gone, and the contact phone number decades out of date, I wonder if they still exist?