A three-day strike by Bank of England support staff will go ahead from Tuesday after talks at the conciliation service Acas ended without agreement, the Unite union said.Employees are unhappy about a below inflation pay rise of 1%. Protestors are planning to gather outside the Bank of England building wearing masks of Governor Mark Carney.It will be the first time for over 50 years that staff at the Bank of England have been on strike.Unite members at the Bank of England working in the maintenance and security departments will be taking part in the strike. In addition, staff in the Bank of England “parlours” which are meeting rooms on the ground floor of the Bank’s building in Threadneedle Street will walk out. The staff are involved in a variety of work including security and catering as well as conducting visitors around the bank. A Bank of England spokesperson said the Bank had been told that the industrial action called by Unite would begin at midnight for three days. “The Union balloted approximately 2% of the workforce,” the statement said. “The Bank has plans in place so that all essential business will continue to operate as normal during this period. The Bank has been in talks with Unite up to and including today and remains ready to continue those talks at any time.”The last time Bank of England staff went on strike was in the late 60s and involved print workers in Debden, who were employed by the Bank of England at that time, Unite said the dispute centred on the “derisory” pay settlement that the bank had imposed on staff without the union’s agreement. It was the second year running that staff had received a below inflation pay offer, it said. Inflation was 2.6% last month, according to official figures.