
Front: King Bhumibol Adulyadej (Rama IX) at right in field marshal's dress uniform with sash, collar and orders, spectacles and all. The Garuda emblem sits top left; the centre carries "รัฐบาลไทย" — Government of Thailand — the legal tender clause, and "ห้าสิบบาท", fifty baht, over the two signatures and their printed titles. A stylised lotus-and-foliage panel fills the lower centre, with the value as 50 in both Arabic and Thai numerals.
Back: The seated bronze of King Prajadhipok (Rama VII) that stands before Parliament, dated in Thai numerals for his reign, ๒๔๖๘–๒๔๗๗ (1925–1934). Behind and to the left rises the domed Ananta Samakhom Throne Hall in Italian marble. A royal ceremonial seal within a sunburst occupies the top left, the Garuda the top right, in muted rose and indigo.
A Series 13 note, introduced in 1985 and printed in quantity through the following decade. Superseded from 1997 by the Series 14 fifty baht — first the short-lived polymer issue, then the paper version of 2004 — after which these gradually vanished from tills, though they were never demonetised.