Editing Thai baht (section)

==== Issue 2, 3 – 1860, 1869 ====
The first circulating issue of the Siamese coins. This marked the start of the move away from using ''photduang'' currency. Though in this era, the ''photduang'' were still legal tender. In this series, the lower denominations were made of silver, and the higher ones were made of gold. These higher denominations were given nicknames: ''pot dueng'', ''pit'', and ''tot''. ''Pot dueng'' means thirty two, as in 1/32 of a ''chang''. The other nickname was the ''chinkang'' or one Chinese ''tamlueng''.<ref>{{Cite web |title=2½ Baht |url=https://en.numista.com/catalogue/pieces24271.html |access-date=2024-03-05 |website=en.numista.com |language=en}}</ref> The pit means twenty, as in 1/20 of a chang, the other name is ekkang, or one thai tamlueng.<ref>{{Cite web |title=4 Baht |url=https://en.numista.com/catalogue/pieces135454.html |access-date=2024-03-05 |website=en.numista.com |language=en}}</ref> The ''tot'' means ten, as in 1/10 of a ''chang''. The coin was also called ''thukkang'', which means two ''tamlueng''.<ref>{{Cite web |title=8 Baht |url=https://en.numista.com/catalogue/pieces24453.html |access-date=2024-03-05 |website=en.numista.com |language=en}}</ref> In the lower denominations materials such as [[tin]], [[copper]] and [[brass]] are used, since these are quite low value.

According to the Thai Treasury, regarding the gold coins, they were minted during a period when large amounts of gold were entering Thailand. Inspired by the widespread use of gold coins in other countries, such as the gold coins of England, King Mongkut (Rama IV) ordered the production of gold coins for domestic use. These coins, with their higher value, facilitated trade as the silver coins in circulation at the time were of lower value. They were officially issued on October 29, 1863, and were withdrawn from use in 1908.<ref>เหรียญทองคำทศ พิศ พัดดึงส์ | กรมธนารักษ์. กรมธนารักษ์ : The Treasury Department. Published 2024. Accessed December 20, 2024. <nowiki>https://www.treasury.go.th/th/coin-king4-gold/</nowiki>‌</ref>

This series of coins was produced using manually operated machinery that had been presented as a royal gift by Queen Victoria of England. Due to the limited production capacity of these machines, the coins could not be minted in sufficient quantities to meet the country's demand. Consequently, their use was discontinued. This coincided with the arrival of steam-powered machinery, which allowed for more efficient and larger-scale coin production.<ref>เหรียญเงินตราพระมหามงกุฏ-พระแสงจักร (บรรณาการ) | กรมธนารักษ์. กรมธนารักษ์ : The Treasury Department. Published 2024. Accessed December 20, 2024. <nowiki>https://www.treasury.go.th/th/coin-king4-tribute/</nowiki>‌</ref> It is worth noting that coins of the half-fuang denomination were not mentioned in official announcements.<ref>เหรียญเงินตราพระมหามงกุฎ - พระแสงจักร | กรมธนารักษ์. กรมธนารักษ์ : The Treasury Department. Published 2024. Accessed December 20, 2024. <nowiki>https://www.treasury.go.th/th/coin-k4-1/</nowiki>‌</ref>

In 1866, These thin copper coins, in sik (half-fuang) and siao (quarter-fuang) denominations, were produced to replace their thicker counterparts, which were heavier and had the same value. The decision to issue lighter, thinner coins was made after an incident where King Mongkut (Rama IV) distributed the thicker coins during a charitable event, and recipients were injured with head wounds and bruises. His Majesty considered that the copper coins already bore stamped marks and inscriptions (indicating that 2 coins equaled 1 fuang and 4 coins equaled 1 fuang), making them trustworthy. Therefore, thinner and lighter coins would still serve their purpose effectively without causing harm.<ref>เหรียญทองแดงตราพระมหามงกุฎ - พระแสงจักร แบบบาง | กรมธนารักษ์. กรมธนารักษ์ : The Treasury Department. Published 2024. Accessed December 20, 2024. <nowiki>https://www.treasury.go.th/th/coin-k4-6/</nowiki>‌</ref>
{| class="wikitable" style="text-align: center"
! colspan="10" |Issue 2 coins (Rama IV) [''The Mongkut Series'']<ref name=":1" />
|-
! colspan="2" |Image
! colspan="2" |Value
! rowspan="2" |Dimensions<br>(mm)
! rowspan="2" |Weight<br>(g)
! rowspan="2" |Composition
! colspan="2" |Inscription, description
! rowspan="2" |Date of issue
|-
!Obverse
!Reverse
!Name
!Coinage value
!Obverse
!Reverse
|-
|[[File:1862 1 Solot O.png|frameless|150x150px]]
|[[File:1862 1 Solot R.png|frameless|150x150px]]
|Solot<br>'''โสฬส'''
|1/16 fueang,<br>1/128 baht
|23 × 2
|4
|Tin
|'''Great Mongkut Seal'''
|'''Siamese State Ensign'''
+<br>สิบ หก อัน เป็น เฟื้อง<br>1/16　F.　方　片　六　十
|1862
|-
|[[File:1862 1 Att O.png|frameless|150x150px]]
|[[File:1862 1 Att R.png|frameless|150x150px]]
|At<br>'''อัฐ'''
|1/8 fueang,<br>1/64 baht
|29 × 2
|7.2
|Tin
|'''Great Mongkut Seal'''
|'''Siamese State Ensign'''
+<br>แปด อัน เปน เฟื้อง<br>1/8　F.　方　片　捌
|1862
|-
|[[File:1862 1 Siao O.png|frameless|150x150px]]
|[[File:1862 1 Siao R.png|frameless|150x150px]]
|Siao<br>'''เสี้ยว'''
|1/4 fueang,<br>1/32 baht
|22 × 3
|7.55<br>3.55
|Copperฺ<br>Brass
|'''Great Mongkut Seal'''
|'''Siamese State Ensign'''
+<br>สี่ อัน เปน เฟื้อง<br>1/4　F.　方　片　四
|1865
|-
|[[File:1862 1 Sik O.png|frameless|150x150px]]
|[[File:1862 1 Sik R.png|frameless|150x150px]]
|Sik<br>'''ซีก'''
|1/2 fueang,<br>1/16 baht
|29 × 3
|10~<br>7.61
|Copper<br>Brass
|'''Great Mongkut Seal'''
|'''Siamese State Ensign'''
+<br>สอง อัน เปน เฟื้อง<br>1/2　F.　方　片　二
|1865
|-
| rowspan="2" |[[File:1862 0.5 Feuang O.png|frameless|150x150px]]
| rowspan="2" |[[File:1862 0.5 Feuang R.png|frameless|150x150px]]
| rowspan="2" |Half Fueang<br>'''ครึ่งเฟื้อง'''
| rowspan="2" |1/2 fueang,<br>1/16 baht
| rowspan="2" |13 × 1
|0.92
|Silver '''''[[Millesimal fineness|0.900]]'''''
| rowspan="2" |'''Great Mongkut Seal'''
| rowspan="2" |'''Siamese State Ensign'''
|1860
|-
|1.69
|Gold '''''[[Millesimal fineness|0.997]]'''''
|1863
|-
| rowspan="2" |[[File:1862 1 Fuang O.png|frameless|150x150px]]
| rowspan="2" |[[File:1862 1 Fuang R.png|frameless|150x150px]]
| rowspan="2" |Fueang<br>'''เฟื้อง'''
| rowspan="2" |1 fueang,<br>1/8 baht
| rowspan="2" |16 × 1
|1.84
|Silver '''''[[Millesimal fineness|0.900]]'''''
| rowspan="2" |'''Great Mongkut Seal''' 1 star
| rowspan="2" |'''Siamese State Ensign''' 1 star
|1857, 1860
|-
|3.39
|Gold '''''[[Millesimal fineness|0.997]]'''''
|1863
|-
| rowspan="2" |[[File:1862 1 Salung O.png|frameless|150x150px]]
| rowspan="2" |[[File:1862 1 Salung R.png|frameless|150x150px]]
| rowspan="2" |Salueng<br>'''สลึง'''
| rowspan="2" |1/16 tamlueng,<br>1/4 baht
| rowspan="2" |22 × 1
|3.7
|Silver '''''[[Millesimal fineness|0.900]]'''''
| rowspan="2" |'''Great Mongkut Seal''' 2 stars
| rowspan="2" |'''Siamese State Ensign''' 2 stars
|1857, 1860
|-
|6.82
|Gold '''''[[Millesimal fineness|0.997]]'''''
|1863
|-
| rowspan="2" |[[File:1862 2 Salung O.png|frameless|150x150px]]
| rowspan="2" |[[File:1862 2 Salung R.png|frameless|150x150px]]
| rowspan="2" |Half Baht<br>'''ครึ่งบาท'''
| rowspan="2" |1/8 tamlueng,<br>1/2 baht
| rowspan="2" |27 × 1
|7.46
|Silver '''''[[Millesimal fineness|0.900]]'''''
| rowspan="2" |'''Great Mongkut Seal''' 4 stars
| rowspan="2" |'''Siamese State Ensign''' 4 stars
|1860
|-
|13.74
|Gold '''''[[Millesimal fineness|0.997]]'''''
|1863
|-
| rowspan="2" |[[File:1862 1 Baht O.png|frameless|150x150px]]
| rowspan="2" |[[File:1862 1 Baht R.png|frameless|150x150px]]
| rowspan="2" |Baht<br>'''บาท'''
| rowspan="2" |1/4 tamlueng,<br>1 baht
| rowspan="2" |31 × 1
|15.45
|Silver '''''[[Millesimal fineness|0.900]]'''''
| rowspan="2" |'''Great Mongkut Seal''' 8 stars
| rowspan="2" |'''Siamese State Ensign''' 8 stars
|1857, 1860
|-
|28.47
|Gold '''''[[Millesimal fineness|0.997]]'''''
|1863
|-
| rowspan="2" |[[File:1862 2 Baht O.png|frameless|150x150px]]
| rowspan="2" |[[File:1862 2 Baht R.png|frameless|150x150px]]
| rowspan="2" |Half Tamlueng<br>'''ครึ่งตำลึง'''
| rowspan="2" |1/2 tamlueng,<br>2 baht
| rowspan="2" |37 × 2.5
|30
|Silver '''''[[Millesimal fineness|0.900]]'''''
| rowspan="2" |'''Great Mongkut Seal''' 16 stars
| rowspan="2" |'''Siamese State Ensign''' 16 stars
| rowspan="2" |1863
|-
|55.29
|Gold '''''[[Millesimal fineness|0.997]]'''''
|-
| rowspan="2" |[[File:1862 2 Baht O.png|frameless|150x150px]]
''stand in image*''
| rowspan="2" |[[File:No_image_available.svg|frameless|100x100px]]
| rowspan="2" |Tamlueng<br>'''ตำลึง'''
| rowspan="2" |1 tamlueng,<br>4 baht
| rowspan="2" |45 × 4
|60
|Silver '''''[[Millesimal fineness|0.900]]'''''
| rowspan="2" |'''Great Mongkut Seal''' 32 stars
| rowspan="2" |'''Siamese State Ensign''' 32 stars
| rowspan="2" |1864
|-
|110
|Gold '''''[[Millesimal fineness|0.997]]'''''
|-
|[[File:1862 2.5 Baht O.png|frameless|100x100px]]
|[[File:1862 2.5 Baht R.png|frameless|126x126px]]
|Song Phai<br>'''สองไพ'''
|1/4 tamlueng,<br>1 baht
|12 × 0.8
|1.34
|Gold '''''[[Millesimal fineness|0.997]]'''''
|'''Great Mongkut Seal'''
|'''Siamese State Ensign'''
|1857
|-
| rowspan="2" |[[File:1862 2.5 Baht O.png|frameless|150x150px]]
| rowspan="2" |[[File:1862 2.5 Baht R.png|frameless|150x150px]]
| rowspan="2" |Paddueng<br>'''พัดดึงส์'''
| rowspan="2" |5/8 tamlueng,<br>2.5 baht
|14 × 0.8
|1.6
|Gold '''''[[Millesimal fineness|0.997]]'''''
|'''Great Mongkut Seal'''
|'''Siamese State Ensign'''
|1857
|-
|16 × 0.8
|1.83
|Gold '''''[[Millesimal fineness|0.997]]'''''
|'''Great Mongkut Seal'''
|'''Siamese State Ensign'''
|1863
|-
|[[File:1862 4 Baht O.png|frameless|150x150px]]
|[[File:1862 4 Baht R.png|frameless|150x150px]]
|Pit<br>'''พิศ'''
|1 tamlueng,<br>4 baht
|17 × 1
|3.88
|Gold '''''[[Millesimal fineness|0.997]]'''''
|'''Great Mongkut Seal'''
|'''Siamese State Ensign'''
|1863
|-
|[[File:1862 8 Baht O.png|frameless|150x150px]]
|[[File:1862 8 Baht R.png|frameless|150x150px]]
|Tot<br>'''ทศ'''
|2 tamlueng,<br>8 baht
|22 × 1
|7.42
|Gold '''''[[Millesimal fineness|0.997]]'''''
|'''Great Mongkut Seal'''
|'''Siamese State Ensign'''
|1863
|-
! colspan="10" |Issue 3 coins (Rama V)<ref name=":1" />
|-
|[[File:No_image_available.svg|frameless|100x100px]]
|[[File:1862 1 Solot R.png|frameless|150x150px]]
''stand in image*''
|Solot<br>'''โสฬส'''
|1/16 fueang,<br>1/128 baht
|32 × 2
|7
|Tin
|'''Great Chula Seal'''
|'''Siamese State Ensign'''
+<br>สิบ หก อัน เป็น เฟื้อง<br>1/16　F.　方　片　六　十
|1868
|-
|[[File:1869 1 Fuang R.png|frameless|150x150px]]
|[[File:1862 1 Fuang R.png|frameless|150x150px]]
|Fueang<br>'''เฟื้อง'''
|1 fueang,<br>1/8 baht
|16 × 1
|1.84
|Silver '''''[[Millesimal fineness|0.900]]'''''
|'''Great Chula Seal'''
|'''Siamese State Ensign''' 1 star
|1869
|-
|[[File:1869 1 Salung R.png|frameless|150x150px]]
|[[File:1862 1 Salung R.png|frameless|150x150px]]
|Salueng<br>'''สลึง'''
|1/16 tamlueng,<br>1/4 baht
|22 × 1
|3.7
|Silver '''''[[Millesimal fineness|0.900]]'''''
|'''Great Chula Seal'''
|'''Siamese State Ensign''' 2 stars
|1869
|-
|[[File:1869 1 Baht R.png|frameless|150x150px]]
|[[File:1862 1 Baht R.png|frameless|150x150px]]
|Baht<br>'''บาท'''
|1/4 tamlueng,<br>1 baht
|31 × 1
|15.45
|Silver '''''[[Millesimal fineness|0.900]]'''''
|'''Great Chula Seal'''
|'''Siamese State Ensign''' 8 stars
|1869
|}