Mercy’s Anzeiger published advertisements from 22/4/1854 repeated throughout the summer season that noted ‘Music; afternoons or evenings’, followed by a list of coffee house and hotel venues giving musical entertainments on each of the seven days of the week. The ‘Guest house [Hotel] at the Black Horse’ on ‘Kolowratstrasse [Kolovratská ulice, now Na příkopě]’ was at the time of this event being included in this list for Tuesdays. No further details of this event were given by these identical source texts, only a selection of which are given with this record.