1 Grosz 1811 IB (Poland, Duchy of Warsaw)
Photo by: WDA - MiM
Specification
- MetalCopper
- Weight1,7 g
- Diameter21 mm
- EdgePlain
- Mintage UNC4,357,763
Description
- CountryPoland
- PeriodDuchy of Warsaw
- Denomination1 Grosz
- Year1811
- RulerFrederick Augustus I (King of Saxony)
- MintWarsaw
- PurposeCirculation

Auction prices
Find out the current coin value of the Polish 1 Grosz 1811 with mark IB. This copper coin from the times of Duchy of Warsaw struck at the Warsaw Mint. Wondering how much a coin like this is worth? The record price belongs to the lot 594 sold at the WDA - MiM auction for PLN 450. Bidding took place October 23, 2021.
How much is the copper coin of Duchy of Warsaw 1 Grosz 1811 IB?
According to the latest data as of December 6, 2025 the average price of a coin 1 Grosz 1811 with mark IB is 20 USD. The coin is made of non-precious metal, so in poor condition it may have extremely low value and liquidity.
Where does our service get data on the current price of the 1 Grosz 1811 with mark IB?
The information on the current value of the Polish coin 1 Grosz 1811 with the letters IB 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 1 Grosz 1811 with the letters IB?
To sell the 1 Grosz 1811 with the letters IB 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.


























