Stock Photo - 09 July 2020, Saxony-Anhalt, Halberstadt: Christine Machate, a restorer of wooden objects, stands in the cathedral treasure in front of the display case with a sermon clock from 1726 and illustrates with a hand movement how it works. The timepiece was stored in the depot of the Cathedral Treasury and had been restored by the Förderverein Dom und Domschatz zu Halberstadt with its current sponsorship project. The sermon clock was attached to the pulpit basket from the late 16th century and clocked the words of the cathedral preacher through an hourglass made of four mouth-blown glass flasks. Photo: Klaus-Dietmar Gabbert/dpa-Zentralbld/ZB. - Halberstadt/Saxony-Anhalt/Germany