NATIONAL Museum of Scotland staff walked out at the Edinburgh institution yesterday for seven days of continuous strike action. 

The latest action follows an 18-month dispute with management over the removal of weekend allowances for new staff.

Public-sector union PCS said that the removal of the allowances had reduced workers’ pay and created a two-tier earnings system, whereby workers joining after 2011 could earn £2-3,000 less than their co-workers who started earlier.