Bells's makers

Today it was organized the program in old town of Geneva that how to make iron bells for cathedral, these three people are making these bells only in this city. They are doing this job as bell making generation by generation , it needs total 17 bells, it will be add for this cathedral, they was showing this in front of the people just three bells, how to make these bells , all other will make in the factory. It was so interesting to watch.