Ort (18 Groszy) 1651 AT (Poland, John II Casimir)
Photo by: MARCINIAK | DOM AUKCYJNY
Specification
- MetalSilver
- Weight5,6 g
- Diameter27 - 28 mm
- EdgePlain
Description
- CountryPoland
- PeriodJohn II Casimir
- DenominationOrt (18 Groszy)
- Year1651
- RulerJohn II Casimir (King of Poland)
- MintPoznan
- PurposeCirculation

Auction prices
Find out the current coin value of the Polish Ort (18 Groszy) 1651 with mark AT. This silver coin from the times of John II Casimir struck at the Poznan Mint. Wondering how much a coin like this is worth? The record price belongs to the lot 5237 sold at the MARCINIAK | DOM AUKCYJNY auction for PLN 16,000. Bidding took place January 28, 2025.
How much is the silver coin of John II Casimir Ort (18 Groszy) 1651 AT?
According to the latest data as of December 5, 2025 the average price of a Silver coin Ort (18 Groszy) 1651 with mark AT is 1900 USD.
Where does our service get data on the current price of the Ort (18 Groszy) 1651 with mark AT?
The information on the current value of the Polish coin Ort (18 Groszy) 1651 with the letters AT 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 Ort (18 Groszy) 1651 with the letters AT?
To sell the Ort (18 Groszy) 1651 with the letters AT 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.





























