1909. 24. Экспонаты Петербургского кружка любителей спорта и акционерного общества чулочно-вязальных изделий Керстен В. П., 1909

Russian-swedish exhibition of physical development and sports (opened on august 16, 1909 in the mikhailovsky manege). 1909. 24. Exhibits of the st. Petersburg circle of sports enthusiasts and the joint-stock company of hosiery and knitting products kersten v. P. Jpg. Date: 1909.