A museum at Bletchley Park, home to the codebreakers of the Second World War, has announced it could lose more than a third of staff.
The Bletchley Park Trust is proposing a restructuring due to the impact of the COVID-19 pandemic.
The closure of its museum and park from March until early July led to more than a 95% downturn in its income.
Now, the trust expects to lose around £2 million this year.
Restructuring plans include a possible 35 redundancies – around a third of the 118-strong workforce, the trust said.
With staff having been informed of the news on Friday, the consultation period is expected to start next week.
Bletchley Park CEO Iain Standen told staff: "It is with deep regret that I am informing you today that the Trust needs to cut jobs.
"We have built a very successful heritage attraction and museum at Bletchley Park and its principal strength is its people.
"However, the economic impact of the current crisis is having a profound effect on the Trust’s ability to survive. We have exhausted all other avenues, and we need to act now to ensure that the Trust survives and is sustainable in the future."
The trust says it is seeking to reduce its annual spend and the size of its team.
It says savings have also been identified within marketing, new exhibitions, travel, IT, printing as well as general efficiency savings.
However, it said these alone are not enough to ensure the continued viability of the museum.
Cover image: PA.