THE —yes, "the"— "UNKNOWN Sender" —who has been dismantled (cf. PROY#31)— sent also an ORANGE mail art in the form of a big orange sheet —ach, it is a "poster orange", as "nous-en-France", we would also say. I noticed this time the sender's discrete signing under the polite "Regards"!
He put an Italian stamp, but this ANONYMOUS knows how to use his local mail service! and I now know he is from Germany!