Due to the 20 Baht banknotes had been used very long time since 1948 to 1968, there were 5 types in quite similar appearance. But each type had a little bit change from the original type.

20 Baht banknote type 1

9th Series 20 Baht Type 1 Thai Banknotes front

Front side : the portrait of His Majesty King Rama 9 is young of age and the serial number is printed in red color. The word "money" is spelled in old school pattern. The watermark image is the constitution placed on the tray.

9th Series 20 Baht Type 1 Thai Banknotes back

20 Baht banknote type 2

9th Series 20 Baht Type 2 Thai Banknotes front

Front side : change the serial number color to black.

20 Baht banknote type 3

9th Series 20 Baht Type 3 Thai Banknotes front

Front side : change the portrait of His Majesty King Rama 9.

20 Baht banknote type 4

9th Series 20 Baht Type 4 Thai Banknotes front

Front side : change the spelling of the word "money" to be modern pattern. Add the metal security tread on vertical line of the banknote instead of the color silk fibers on paper.

20 Baht banknote type 5

9th Series 20 Baht Type 5 Thai Banknotes front

Front side : the watermark image is the portrait of His Majesty King Rama 9.

Back side : change the penalty message to comply with the new penal code.

Appraisal price

Type 1

Ordinary number signatures Wiwatchai-Leng UNC about 31,000 - 36,000 baht.

Ordinary number signatures Wiwatchai-Leng EF aboutณ 12,000 - 12,500 baht.

Ordinary number signatures Wiwatchai-Leng VF about 9,500 - 10,000 baht.

Ordinary number signatures Tonawanik-Wiwatchai UNC about 85,000 - 89,000 baht.

Ordinary number signatures Tonawanik-Wiwatchai VF about 35,000 - 38,000 baht.

Ordinary number signatures Tonawanik-Wiwatchai F about 12,000 - 13,000 baht.

Ordinary number signatures Wiwatchai-Dej EF about 35,000 - 37,000 baht.

Ordinary number signatures Wiwatchai-Dej F about 12,000 - 13,000 baht.

Ordinary number signatures Plaek-Dej VF about 55,000 - 58,000 baht.

Type 2

Ordinary number signatures Wiwatchai-Leng UNC about 14,000 - 15,000 baht.

Ordinary number signatures Wiwatchai-Dej UNC about 99,000 - 100,000 baht.

Ordinary number signatures Wiwatchai-Dej EF-UNC about 51,000 - 56,000 baht.

Ordinary number signatures Plaek-Dej UNC about 18,500 - 19,200 baht.

Ordinary number signatures Manu-Dej EF about 11,000 - 12,000 baht.

Type 3

The price is on updated process.

Type 4

The price is on updated process.

Type 5

Ordinary number signatures Serm-Chot UNC about 83,000 - 88,000 baht.

Ordinary number signatures Serm-Chot EF about 44,000 - 46,000 baht.

Ordinary number signatures Serm-Puay UNC about 680 - 750 baht.

Solid number set 1's - 9's + 000001 + 1000000 (11 notes) signatures Serm-Puay EF about 250,000 baht.

Solid number set 1's - 9's + 000001 + 1000000 (11 notes) signatures Sommai-Pisoot EF about 250,000 baht.

Specimen signatures Serm-Puay print "SPECIMEN" UNC about 32,000 baht.

Specimen signatures Soontorn-Puay print "SPECIMEN" UNC about 26,000 baht.

The price was updated on 25th November 2017.

Banknote Info

Using announcement date

Type 1 : 24th May 1948

Type 2 : 23rd Febuary 1950

Type 3 : 27th November 1953

Type 4 : 18th September 1956

Type 5 : 9th December 1957

Banknote size

8.70 x 14.70 cm.

Serial code

Type 1 : F 1 - F 12

Type 2 : F 13 - F 50

Type 3 : F 51 - F 88

Type 4 : F 89 - F 100, G 1 - G 9

Type 5 : G 10 - G 100, H 1 - H 100, Y 1 - Y 456, Y 901 - Y 905

Signatures on banknote

Type 1

Wiwatchai - Leng

Tonawanik - Wiwatchai

Wiwatchai - Dej

Plaek - Dej

Type 2

Wiwatchai - Leng

Wiwatchai - Dej

Plaek - Dej

Manu - Dej

Type 3

Pao - Serm

Type 4

Pao - Serm

Pao - Kasem

Type 5

Pao - Kasem

Serm - Kasem

Serm - Chot

Chot - Chot

Soontorn - Puay

Serm - Puay

Sommai - Pisoot

Minister of Finance
H.H. Prince Wiwatchai (28 Jun 1949 13 Oct 1949)
Feild Marshall Plaek Piboonsongkram (13 Oct 1949 - 18 Jul 1950)
Phra Manupanwimolsart (18 Jul 1950 - 28 Nov 1951)
General Pao pianlert Boripanyutakit (8 Dec 1951 - 30 Mar 1957)
Col. Naiworakarn Bancha (31 Mar 1957 - 16 Sep 1957)
Mr. Serm Winitchaikul (26 Sep 1957 - 20 Oct 1958)
Mr. Chot Kunakasem (10 Feb 1959 - 1 May 1959)
Mr. Soontorn Hongladarom (1 May 1959 - 8 Jul 1965)
Mr. Serm Winitchaikul (8 Jul 1965 - 15 Oct 1973)
Mr. Sommai Hoontrakool (30 May 1974 - 20 Feb 1975)

Governor of Bank of Thailand
Mr. Leng Srisomwong (3 Dec 1948 - 3 Aug 1949)
M.L. Dej Sanitwong (4 Aug 1949 - 29 Feb 1952)
Mr. Serm Winitchaikul (1 Mar 1952 - 1955)
Mr. Kasem Sripayak (25 Jul 1955 - 23 Jul 1958)
Mr. Chot Kunakasem (24 Jul 1958 - 3 May 1959)
Mr. Puay Ungpakorn (11 Jun 1959 - 15 Aug 1971)
Mr. Pisoot Nimmanhemin (16 Aug 1971 - 23 May 1975)