Vintage Dutch study booklet AO 518 caves and caverns 1954

Old vintage brocante school booklet in Dutch!!! AO 518 grotten, holen en spelonken (caves and caverns), weekly study series IVIO foundation current topics, July 9, 1954, 10th volume no. 28. Thin booklet with soft cardboard cover, inside of glossy paper, with text and black/white drawings. Nostalgic to read, to learn something from, as a nostalgic decoration or for collectors. Light signs of use (damage on the back, see photos).

Size: +/- 18 x 12 cm.