Councils have been fundraising to buy the hoard
An organisation known as the "fund of last resort for the nation's heritage" could help to keep the Staffordshire Hoard in the West Midlands region.
National Heritage Memorial Fund trustees will discuss next week whether to help to keep the largest haul of Anglo-Saxon treasure in the area.
Stoke-on-Trent City Council is working with Birmingham City Council to raise £3.3m to buy the hoard by 17 April.
The collection could otherwise be divided and sold to private collectors.
The hoard was discovered in a field in Staffordshire by metal-detecting enthusiast Terry Herbert in July.
More than 60 items from the collection have gone on display at the Birmingham Museum and Art Gallery.
Nearly 70 items are also on show at the Potteries Museum in Stoke-on-Trent.
Both displays will run until 18 April.