10,000 <a href="https://en.wikipedia.org/wiki/Belgian_franc" class="extiw" title="en:Belgian franc">Belgian francs</a> (2,000 belgas) of 1929, designed by <a href="https://en.wikipedia.org/wiki/Constant_Montald" class="extiw" title="w:Constant Montald">Constant Montald</a>. The frontside (top) depicts <a href="https://en.wikipedia.org/wiki/Ceres_(Roman_mythology)" class="extiw" title="en:Ceres (Roman mythology)">Ceres</a> in a chariot and personifications of science and art at the left. The white central circle contains a <a href="https://en.wikipedia.org/wiki/watermark" class="extiw" title="en:watermark">watermark</a>, portraying King <a href="https://en.wikipedia.org/wiki/Leopold_I_of_Belgium" class="extiw" title="en:Leopold I of Belgium">Leopold I</a>. Below the watermark is <a href="https://en.wikipedia.org/wiki/Coat_of_arms_of_Belgium" class="extiw" title="en:Coat of arms of Belgium">Belgian Lion</a>. To the right is <a href="https://en.wikipedia.org/wiki/Neptune_(mythology)" class="extiw" title="en:Neptune (mythology)">Neptune</a> in a chariot and personifications of trade (with <a href="https://en.wikipedia.org/wiki/Caduceus" class="extiw" title="en:Caduceus">caduceus</a>) and industry. The backside (bottom) shows other allegories sowing and harvesting corn.
<a href="https://en.wikipedia.org/wiki/National_Bank_of_Belgium" class="extiw" title="w:National Bank of Belgium">National Bank of Belgium</a>, scan by National Bank of Belgium
<a href="https://en.wikipedia.org/wiki/Museum_of_the_National_Bank_of_Belgium" class="extiw" title="w:Museum of the National Bank of Belgium">Museum of the National Bank of Belgium</a>