SIG:III:D:G:REX:PO:M:DL, Crowned "S" (for "Sigismund") with a heralidic shield in the middle, dividing the date / SOLIDVS CIVI REGENS 20 ("Solidus of the city of Riga, (16)20"), Crowned arms of Riga . 17mm, 0.99 grams. Riga mint. Krause KM #5.
Rare in such high quality!
Sigismund III Vasa (20 June 1566 30 April 1632) was King of Poland and Grand Duke of Lithuania, a monarch of the united PolishLithuanian Commonwealth from 1587 to 1632, and King of Sweden (where he is known simply as Sigismund) from 1592 until he was deposed in 1599. He was the son of King John III of Sweden and his first wife, Catherine Jagellonica of Poland.