Property investor Vincent Tchenguiz bought an 8% stake in coin trader Noble Investments.

Tchenguiz was the largest buyer of the AIM-listed company’s 1.5m new shares, which will raise £2.8m for its expansion into stamp trading.

Tchenguiz’s father, Victor Tchenguiz, was the Shah of Iran’s coin-minter and jeweller before fleeing to London in 1979.