1977 AD., Austria, 900th anniversary of Hohensalzburg Castle commemorative, Vienna / Wien mint,100 Schilling, KM 2935.

Austria, 900th anniversary of Hohensalzburg Castle commemorative, engraver: Helmuth Gsölpointner, Vienna mint, 1977 AD.,
100 Schilling (ø 36 mm / 23,95 g), 0.640 silver, 24,00 g theor. mint weight, mintage 1.878.000 , axis medal alignment ↑↑ (0°), plain edge,
Obv.: REPUBLIK / ÖSTERREICH / 100 / SCHILLING / GSÖLL , issuer above Austrian heraldic eagle, value and engraver´s initials below.
Rev.: 900 / JAHRE / FESTUNG / HOHEN- / SALZBURG / 1977 , aerial view of the Salzburg Castle.
KM 2935 : Schön 130 .

Year / Mintage
1977 1.878.000
1977 122,000 proof edition
1977 ? select edition

Hohensalzburg Castle (German: Festung Hohensalzburg, literally "High Salzburg Fortress") sits atop the Festungsberg, a small hill in the Austrian city of Salzburg. Erected at the behest of the Prince-Archbishops of Salzburg with a length of 250 m (820 ft) and a width of 150 m (490 ft), it is one of the largest medieval castles in Europe. Hohensalzburg Castle is situated at an altitude of 506 m.
Construction of the fortress began in 1077 under Archbishop Gebhard von Helfenstein. The original design was a basic bailey with a wooden wall. In the Holy Roman Empire, the archbishops of Salzburg were already powerful political figures and they expanded the castle to protect their interests.
More on https://en.wikipedia.org/wiki/Hohensalzburg_Castle