Advert with florin sign (upright hooked form) in <i>De Stem</i>, 6 August 1986, page 4.
<i>de Stem</i>
<i>de Stem</i>, 6 August 1986, page 4. (on <a rel="nofollow" class="external text" href="https://krantenbankzeeland.nl/issue/stm/1986-08-06/edition/null/page/4">Krantenbank Zeeland</a>)