Old school tabourets

The famous high stool (mullca?) of the science rooms on which many of us have sat. In memory of this time of carelessness, the two copies available were deliberately left in their juices (see photos, 7 per copy), with the incisions of the scalpels, the initials engraved, even the marker drawings on the back of one of them including a kind of curious giraffe on skate board which it can be doubtful that it earned a beautiful note of drawing to its author. Of course, they were cleaned, rid of the traditional glued chewing gum and a grease and protective spray was passed on the bars of the tubing worn by the thousands of shoes that rubbed on it.