The one-baht coin is a currency unit of the Thai baht. It is commonly called rian baht (Thai:เหรียญบาท) by Thai speakers (rian meaning "coin" in Thai). Like all coins in Thailand, its obverse features King Bhumibol Adulyadej. Its reverse features Wat Phra Sri Rattana Satsadaram or Wat Phra Kaew, the royal temple in Bangkok's Grand Palace complex.
On February 2, 2009, the Treasury Department announced changes to several circulating coins. The composition of the one-baht coin changed from cupronickel to nickel-clad iron, reducing the mass from 3.4 grams to 3.0 grams. The obverse image has also been updated to a more recent portrait of the king.
1986 ~ 4,200,000
1987 ~ 329,471,000
1988 ~ 391,442,000
1989 ~ 466,684,000
1990 ~ 409,924,000
1991 ~ 329,946,380
1992 ~ 426,230,000
1993 ~ 235,623,000
1994 ~ 475,200,000
1995 ~ 589,394,650
1996 ~ 98,487,000
1997 ~ 350,660,600
1998 ~ 176,932,000
1999 ~ 224,389,000
2000 ~ 427,589,000
2001 ~ 393,460,000
2002 ~ 269,375,000
2003 ~ 280,691,000
2004 ~ 562,018,000
2005 ~ 1,470,538,000
2006 ~ 749,861,000
2007 ~ 618,918,316
2008 (old series) ~ 562,532,000
2008 (new series) ~ 180,900,000
2009 ~ 246,000,000
Commemoration of King Bhumibol Adulyadej and the Queen Sirikit return from the World visit.
The 3rd Cycle Birthday of King Bhumibol Adulyadej.
The 5th Asian Games.
The 6th Asian Games.
Commemorative of the Food and Agriculture Organisation FAO (1972).
Commemoration of HRH Crown Prince Vajiralongkorn.
The 25th Anniversary of World Health Organisation WHO.
The 8th SEAP Games.
The 75th Anniversary of Princess Mother Srinagarindra.
Commemorative of the Food and Agriculture Organisation FAO (1977).
Commemoration of Princess Sirindhorn graduated from Chulalongkorn University.
Commemoration of HRH Princess Sirindhorn.
The 8th Asian Games.
Commemoration of the World Food Day.
The 50th Anniversary Celebrations of the King Bhumibol Adulyadej's Accession.
