Single year type commemorating the 90th birthday of Princess Mother Srinagarindra
Obv: Bust of Srinagarindra with “Her Royal Highness Princess Srinagarindra” below
>Rev: The The great crown of victory standing on a two-tiered phan and two five-tiered lotus-bud umbrellas standing on stools aside with denomination and “Thailand” below, “Celebrating Her Majesty’s 90th birthday 21 October 1990” around
