So called "corona stamps" are seen in a post office, as the 2.75 euro "corona stamp" is printed on three-ply toilet paper and sold individually as part of a 10 cm wide sheet, in Vienna, Austria, Oct. 28, 2020. (Photo/Agencies)

An employee of the Austrian postal service stamps a so-called "corona stamp" in a post office, as the 2.75 euro "corona stamp" is printed on three-ply toilet paper and sold individually as part of a 10 cm wide sheet, in Vienna, Austria, Oct. 28, 2020. (Photo/Agencies)

An employee of the Austrian postal service displays a so called "corona stamp" in a post office, as the 2.75 euro "corona stamp" is printed on three-ply toilet paper and sold individually as part of a 10 cm wide sheet, in Vienna, Austria, Oct. 28, 2020.  (Photo/Agencies)