Medal - March along the wire Ljubljana

PST or "Pot spominov in tovarištva" (eng: Trail of Remembrance and Comradeship) as it is called today (in year 2019) had many names in the past. It is a 33 km walking trail around the Slovenian capitol Ljubljana, on which every year since 1957 a special occasion takes place. Each year tens of thousands of people attend the walk around the city in remembrance of city's Italian occupation during 2nd World War, who literally pulled the barbed wire around the city (probably unique idea of such occupation of a city in Europe ever). Each stroller gets a brochure where eight stamps can be collected and each person finishing the walk gets annual bronze-like medal, for five finished walks you get a silver-like medal and for every ten confirmed walks you get gilded medal (medals/tokens were different thru time).

Some years ago organizers were taking names of annual attendees, so that they probably had an idea of how many "commemorative" medals they should make. These days no more names are taken at the start, each person has to collect enough finished brochures thru years to get silver or gilded medal.

See more info at:
https://issuu.com/knjiznicaljubljana/docs/potobzicivirtualna_koncna
https://en.wikipedia.org/wiki/Trail_of_Remembrance_and_Comradeship