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Stefan Proynov: Denver mistake for a million dollars!
Stefan Proynov: We will call this coin the Denver Million Dollar Error because the coin is extremely rare minted with a wheat grade on...
Stefan Proynov:No Date 5C With Cents, Liberty Nickel — Struck 45% Off Center
No Date 5C With Cents, Liberty Nickel — Struck 45% Off Center — AU55 NGC.
Stefan Proynov Mint Error coins consultant for Europe
My estimated price...
Stefan Proynov: Struck 20% Off Center — VF35
(1865-1889) 3CN Three Cent Nickel — Struck 20% Off Center — VF35 NGC.
Stefan Proynov Mint Error coins consultant for Europe
My estimated price for this...
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Mint Error Netherlands 1 gulden, 1996
For your attention an interesting error coin of Mint Error Netherlands 1 gulden, 1996
It is rare to find such a coin injured in so...
Stefan Proynov: Gold coin Double Struck Mint Error
Stefan Proynov: Gold coin Double Struck Mint Error
Stefan Projnov: Check out this stunning mint error: an 1863 Great Britain sovereign that was Double Struck!...
Mint error Nikel 2015 PCGS
An expert on wrong coins in Europe, Stefan Proynov, claims that more and more wrong coins are finding their place on the market.
Here is...
