© Baldwins of St James Ltd
 10 Gulden - Willem I Countermark
1840 year| Gold (.900) | 6.72 g | 22.5 mm | 
|   Issuer   |  Indonesia › Netherlands East Indies (1601-1949) | 
|---|---|
|   King   |  William I (1816-1840) | 
|   Type   |  Standard circulation coin | 
|   Year   |  1840 | 
|   Value   |  10 Gulden | 
|   Currency   |  Java - Countermarked Coinage | 
|   Composition   |  Gold (.900) | 
|   Weight   |  6.72 g | 
|   Diameter   |  22.5 mm | 
|   Shape   |  Round | 
|   Technique   |  Countermarked | 
|   Orientation   |  Coin alignment ↑↓ | 
|   Demonetized   |  Yes | 
|   Updated   |  2024-10-05 | 
|   Numista   |  N#308930 | 
|---|---|
|   Rarity index   |  95% | 
Reverse
Crowned arms with value and date
 Lettering: 
 1840
 MUNT VAN HET KONINGRYK DER NEDERLANDEN
 10 G 
Engraver: Auguste-François Michaut
Interesting fact
One interesting fact about the 10 Gulden - Willem I (Countermark) 1840 coin from Indonesia › Netherlands East Indies (1601-1949) is that it was minted during a time when the Netherlands was facing economic challenges, and the government decided to introduce a new currency system to address these issues. The 10 Gulden coin was part of this new system, and it was designed to be a more stable and reliable currency than the previous system. The use of gold in the coin's minting was a deliberate choice to ensure its value and stability.