Original photograph 10,5×16,5cm, taken by Van der Stok, Breestraat 149 Leiden, of three men in 1908 wearing white tie following the doctorate of one of them (doctor and paranymfen). Depicted are Dr. David Cohen, Dr. Nico (Nicolaas Johannes) Krom and Dr. A.J. (Bram) Luyt at the occasion of the defense by Krom of his dissertation: […]