CZ-1491276 Old Grannies stomping grapes

I received this very nice Inge Löök postcard from Jitka of Czechia (12 December 2018).  It shows the two old grannies stomping grapes in a large vat and as usual, having a lot of fun. Jitza wrote that grapes are widely produced where she lives - South Morava in her part of Czechia. 

Grape-stomping (also known as pigeage) is a traditional way of making wine from grapes. Rather than using a wine press or other mechanised method, grapes were crushed by having barefoot participants repeatedly stomp on them in vats to release their juices and begin fermentation. Stomping was widespread in the history of winemaking, but with the introduction of industrial methods, it now survives mostly as a recreational or competitive activity at cultural festivals. (Definition of grape-stomping from Wikipedia)