https://trc-images.nl/collection_images/hires/2014/2014.1026.JPG#\\TRC-SERVER\TRCSharedWork\TRC Database\collection%20photographs\2014.1000\2014.1026.JPG#
Small marking sampler in red. Alphabet row of numbers text: M. Groenewegen and initials FvS 6; MG 24 164; LdH 12.