Heyens R1749a 1749b R1820a R1820c R1840 R1860a H1606 H1824b H1840 H1840 H1840 H1860a H1860a H1860a H1860b Hm1824b Hm1824b Hm1824b Hm1860b S1812a S1812b S1812b S1812b S1812c S1829a S1829b S1829b S1829d S1829e S1829e S1829e S1829 e S1840a S1840b S1840b S1860b S1860b S1860b S1860e S1860f S1860f U1820a U1820a St1860a B1820a B1820c R1713b R1713b U1840 U1840 U1860a B1860b