The miniaturesheet depicts the 118-metre high Gibloux Radio Tower on Mont Gibloux (1'204 m) , which can be ascended via a spiral staircase. The 37-metre high viewing platform affords views far and wide over the Gruyère region and beyond to the Alps and the Jura Mountains.
The left stamp depicts the "Viaduc du Lac de Gruyère" (2043.75 m length and 23.70 m width) of the A12 motorway. The viaduct was built in the 1970s and crosses a first inlet of the lake at a height of aproximately 70 m and extends across country at a height of 5 to 35 m to cross a second inlet at a height of aproximately 80 m. The background and the illustration show the Dent de Brenleire 2‘353 m & Dent de Folliéran 2'340 m of the Massif du Vanil Noir.
The stamp "Viaduc du Lac de Gruyère" is existing imprinted on a postal stationery card as well.