Workers at London’s National Gallery are set to strike over Christmas as bosses press ahead with privatisation plans.
The walkouts are planned for 27 and 29 December, and 3 January.
Bosses want to privatise 400 out of 600 posts.
The union had been in talks to try and keep the workers, who look after the paintings and help visitors. But management pulled the plug.
They have also gone against proposals to introduce the London Living Wage at the gallery.