This coin https://en.numista.com/catalogue/pieces74034.html is listed as being minted in 1986.
While it commemorates '86 World Cup, it has only been minted in 1988.
https://www.ngccoin.com/price-guide/world/afghanistan-500-afghanis-km-1009-1988-cuid-1044023-duid-1215841
https://en.ucoin.net/coin/afghanistan-500-afghanis-1988/?tid=48477
https://www.coinshome.net/en/coin_definition-500_Afghani-Silver-Democratic_Republic_of_Afghanistan_(1978_1992)-LMUK.GJAxvgAAAEwfvvi7ALY.htm
...
The only reference saying it's minted in 1986 is Numista.