The Vergnügungsanzeiger of Mercy’s Anzeiger 4/2/1857 announced that ‘Today Wednesday... Restaurant at the Bunch of Grapes [Restauration zur Trauben]: Hollas’s [Holas] Sextet.’ This issue of the newspaper also an advertisement announcing: ‘Every Wednesday Music-Production by Hollas’s Sextet at the Blue Grapes [Inn].’ No further details were given by the source.