This piano, now (and still used) at the Fields Institute for Research in Mathematical Sciences in Toronto, belonged to famed geometer H.S.M. "Donald" Coxeter (1907-2003). The piano was given by Coxeter's father to his mother at the time of Coxeter's birth and remained with him for his entire life. He composed music in his youth and was an accomplished pianist by age 10.
The piano stands beneath a magnificent spiral staircase at the Fields Institute.
For other features of the Fields Institute, see "Mobile of the Fourth Dimension" and "Borromean Triangles."
Photos by I. Peterson