Belgium B319-B327 mlh

Belgium B 319-B327, lightly hinged, $3.40. Michel 600-608. Surtax to help fight tuberculosis, 1942. Jean Bollandus, Andreas Vesalius, Simon Stevinus, Jean Van Helmont, Rembert Dodoens, Gerardus Mercator, Abraham Ortelius, Justus Lipsius, Christophe Plantin.