20 Mark 1878 S (Finland, Grand Duchy)
Photo by: The Coin Cabinet
Specification
- MetalGold (0,900)
- Weight6,45 g
- Pure gold (0,1866 oz) 5,805 g
- Diameter21,3 mm
- EdgeReeded
- Aspect ratioMedallic (↑↑)
- Mintage UNC235,000
Description
- CountryFinland
- PeriodGrand Duchy
- Denomination20 Mark
- Year1878
- RulerAlexander II (Emperor of Russia)
- MintHelsinki
- PurposeCirculation
Auction prices
Find out the current coin value of the Finnish 20 Mark 1878 with mark S. This gold coin from the times of Grand Duchy struck at the Helsinki Mint. Wondering how much a coin like this is worth? The record price belongs to the lot 631 sold at the AB Philea & Myntkompaniet auction for EUR 4,400. Bidding took place March 12, 2022.
How much is the gold coin of Grand Duchy 20 Mark 1878 S?
According to the latest data as of December 5, 2025 the average price of a Gold coin 20 Mark 1878 with mark S is 830 USD. The coin contains 5,805 g of pure gold, so we do not recommend selling it for less than 791,52 USD, even if it is in poor condition and has no collectible value.
Where does our service get data on the current price of the 20 Mark 1878 with mark S?
The information on the current value of the Finnish coin 20 Mark 1878 with the letters S is based on actual auction sales of similar specimens. To reflect the current price level, our service monitors over 590 numismatic companies and records auction results in the coin catalog and auction archive. Please note that the exact value depends directly on the coin's condition, so the average price serves only as an approximate estimate.
Where can I sell the 20 Mark 1878 with the letters S?
To sell the 20 Mark 1878 with the letters S we recommend contacting specialized numismatic companies that hold regular auction sales. Public auctions are the most fair and secure way to sell valuable collectible coins. Go to the list of companies to find a suitable platform.
