The crown gold coin minted in Bydgoszcz in 1671 is, in practice, the only available silver coin of King Michał Korybut. And this one is interesting not only historically, but also for its provenance.
It's a coin that, according to Lengnich, was minted only 5,000 pieces (!) at the behest of Andrzej Morsztyn, Grand Treasurer of the Crown.
According to Czapski, this gold coin was minted in a small quantity in order to be submitted to the upcoming Diet, which was to pass a law allowing it to be minted. It was therefore a specimen sample, not a circulating coin. However, that parliament was broken up, and as a result, the coins were to be melted down at the mint on the king's orders.
This led to an even greater rarity of the coin. Of the 5,000 pieces, only a small portion of the mintage probably survived.
Interesting both historically and heraldically, the reverse of which bears the initials of Michal Hodermann - the warden of the Bydgoszcz mint. However, it is the coat of arms on the obverse that is unique in the scale of Polish minting, as the specialist Zbigniew Kielb points out:
"Also unique on the scale of the entire Polish minting of the period 1479-1707 is the location of the coat of arms of the Minister of the Treasury - here - Jan Andrzej Morsztyn of the Leliwa coat of arms on crossed keys. This is the only such case. Their function was not to embellish it, but to unambiguously indicate the person responsible for and supervising the production of the trial coins of 1671. This person was, by virtue of his office as Minister of the Treasury in the Crown, Jan Andrzej Morsztyn, whose sign of dignity as Grand Treasurer were precisely two keys."
A coin with a round ownership punch at 12 o'clock, a punch that is found on gold coins from the time of Royal Poland, or rare silver. Belonging to a still undetermined, but unique collection, considering how rare coins have this punch.
High rarity.
Silver, diameter 32 mm, weight 9.96 g.