Of Selma Frank remains a certificate, issued on 19 February 1927 by the management of De Bijenkorf. Selma Frank had been working from 15 November 1924 to 19 February 1927 as an office clerk in the Statistics department. The management wrote in the certificate:
'She has always carried out the tasks she was given to our satisfaction and her behaviour could not be faulted. Miss Frank leaves our comp…