Gold and silver treasure looted from west Africa by the British army in colonial wars are to be lent to Ghana in a three-year deal, the British Museum and the Victoria and Albert Museum have announced.

The precious regalia, which had belonged to the Asante royal court, is regarded as part of the “national soul” of Ghana. Under the deal, 17 objects from the V&A and 15 from the British Museum, will go on show later this year at the Manhyia Palace Museum in Kumasi, the capital of Asante region. Many of the items have not been seen in Ghana for 150 years.

Nana Oforiatta Ayim, a special adviser to Ghana’s culture minister, welcomed the deal as a “good starting point” in righting the wrongs of the UK’s violent colonial past.