Poltina with the portrait of S. Guen was produced only in 1712. Front and back of the braid is surrounded by a rim (partially or completely absent, this is not a marriage).On the obverse
is a portrait of Peter the Great in profile, face to the right. Of the circumference - "ЦРЬ ПЕТРЪ АЛЕSIЕВИЧЪ"("Tsar Peter Alexeyevich").On the coin reverse
in the center the emblem of Russia at the beginning of the XVIII century - double-headed eagle with outstretched wings, on the heads of the Royal crown, over which is the same, but larger. In paws the eagle holds the symbols of power - the scepter and Orb. Under the clutches of the eagle the year of issue "17 12" (digits divided into two parts). The top of the circle marked with the denomination of the coin - "МОСКОВСКI ПОЛТИНА"(inscription divides crown).
Photo from the site rcoins.ru