Medical vacuum pump

Here we are with the most loved column… the #whatisit! What on earth is this #ancient #medical #instrument from the #earlytwentiethcentury? It is a… #vacuumpump! As you can see, the box contains: a #pump with piston, three #ancientvalves and three #ancientglassbells. The attempt - used especially in #anti-pharmaceutical #bodies was to suck the air from under the bells to "isolate" the medicines and preparations! #unique piece to be exhibited, this technique was also used for the practice of #bloodletting on the most fragile who could not be subjected to a real blood extraction.