Estrada went to court in 2016 to fight for access to euthanasia. In 2022, the court confirmed a ruling that gave the psychologist an exemption to end her life
The portrait is the fifth of the 88-year-old queen, who will overtake Queen Victoria as Britain's longest-reigning monarch in September, to appear on coins since she came to the throne in 1952, and the first since 1998.
The new portrayal, which shows Elizabeth wearing the Royal Diamond Diadem crown worn for her coronation, was created by 33-year-old Royal Mint engraver Jody Clark, whose design was selected from a number of anonymous submissions.
The last Royal Mint Engraver to be commissioned to undertake a royal portrait was George William de Saulles, who engraved the portrait of Edward VII which first appeared on coins in 1902.
Coins featuring the new effigy will go into production immediately.