A hugely rare, until recently uncatalogued hybrid, discovered and described for the first time in 2019 by Second Republic coin specialist Mr. Mariusz Walendzik, whose discovery was recently confirmed by the publication of the variety in the latest edition of J. Parchimowicz's specialized catalog.
The obverse stamp used for minting the "deep" banner with the characteristic doubling of the date was used to strike the offered piece (when producing the stamp, the date punch was struck twice, but not perfectly in the same place).
Obverse: state eagle of the 1927 design, below it the inscription 5 ZŁOTY 5 and the year 1930;
Reverse: Banner flying in the wind on a long spar topped with a flag eagle, with an inscription in three lines HONOR / AND / DAD, below the banner a horizontal inscription in four lines: 1830 - 1930 / ON THE HUNDRED / ANNIVERSARY / OF THE STATE of Poland punctuated by a banner spar. Embellishment of dashes, at the bottom left Kościesza coat of arms - mark of the State Mint in Warsaw, on both sides of the spar initials of the designer Wojciech Jastrzębowski - W - J.
Border: SALUS-REIPUBLICAE-SUPREMA-LEX;
