Cupping was a widely-used method in the treatment of flu and cold illnesses in the 19th and up to first haf of 20th century.Even medical doctors believed that correctly applied glass cups were beneficial for the entire body and would help fight infection. Even the bruises caused by hot cups were viewed as useful - autohemotherapy - the treatment with one's own internal bleeding to boost immunity.  In a typical cupping session, glass cups are warmed using a cotton ball, which is soaked in alcohol, lighted, then placed inside the cup. Burning a ubstance inside the cup removes all the oxygen, which creates a vacuum. The practitioner then places
the cups on the patient's back 3cm apart for 10-15 minutes. This is believed to open up the skin’s pores and draw toxins out of the body. Although this method was very popular, it has not been used in the past , 40 years even in Russia, as it was proved to be harmful.  

Dear Buyer: These items are part of a large collection that i inheritted from my Grandfather.
He lived in USSR .
I live in U.S. myself but the items are still shipped from Europe.
  Thank you for your interest and time!